./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread/queue_longer.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/queue_longer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:34:16,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:34:16,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:34:16,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:34:16,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:34:16,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:34:16,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:34:16,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:34:16,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:34:16,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:34:16,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:34:16,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:34:16,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:34:16,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:34:16,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:34:16,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:34:16,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:34:16,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:34:16,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:34:16,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:34:16,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:34:16,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:34:16,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:34:16,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:34:16,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:34:16,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:34:16,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:34:16,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:34:16,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:34:16,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:34:16,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:34:16,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:34:16,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:34:16,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:34:16,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:34:16,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:34:16,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:34:16,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:34:16,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:34:16,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:34:16,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:34:16,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:34:16,484 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:34:16,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:34:16,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:34:16,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:34:16,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:34:16,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:34:16,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:34:16,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:34:16,487 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:34:16,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:34:16,488 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:34:16,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:34:16,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:34:16,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:34:16,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:34:16,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:34:16,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:34:16,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:34:16,490 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:34:16,490 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:34:16,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:34:16,490 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:34:16,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:34:16,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:34:16,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:34:16,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:34:16,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:34:16,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:34:16,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:34:16,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:34:16,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:34:16,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:34:16,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:34:16,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:34:16,493 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:34:16,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:34:16,493 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:34:16,494 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:34:16,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:34:16,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:34:16,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:34:16,803 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:34:16,803 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:34:16,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longer.i [2023-08-30 12:34:17,913 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:34:18,199 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:34:18,202 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i [2023-08-30 12:34:18,223 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6441eccd/6bd449c71c3a486db2bee12ae14e2e56/FLAG4129a038f [2023-08-30 12:34:18,236 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6441eccd/6bd449c71c3a486db2bee12ae14e2e56 [2023-08-30 12:34:18,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:34:18,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:34:18,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:34:18,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:34:18,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:34:18,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:18,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2f0811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18, skipping insertion in model container [2023-08-30 12:34:18,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:18,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:34:18,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:34:18,791 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43296,43309] [2023-08-30 12:34:18,797 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43503,43516] [2023-08-30 12:34:18,802 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43783,43796] [2023-08-30 12:34:18,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:34:18,822 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:34:18,880 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43296,43309] [2023-08-30 12:34:18,887 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43503,43516] [2023-08-30 12:34:18,891 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43783,43796] [2023-08-30 12:34:18,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:34:18,951 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:34:18,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18 WrapperNode [2023-08-30 12:34:18,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:34:18,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:34:18,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:34:18,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:34:18,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:18,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,006 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2023-08-30 12:34:19,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:34:19,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:34:19,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:34:19,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:34:19,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:34:19,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:34:19,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:34:19,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:34:19,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (1/1) ... [2023-08-30 12:34:19,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:34:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:34:19,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 12:34:19,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 12:34:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 12:34:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 12:34:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 12:34:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 12:34:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:34:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:34:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:34:19,120 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:34:19,337 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:34:19,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:34:19,794 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:34:19,803 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:34:19,815 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 12:34:19,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:34:19 BoogieIcfgContainer [2023-08-30 12:34:19,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:34:19,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:34:19,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:34:19,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:34:19,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:34:18" (1/3) ... [2023-08-30 12:34:19,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf9d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:34:19, skipping insertion in model container [2023-08-30 12:34:19,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:34:18" (2/3) ... [2023-08-30 12:34:19,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf9d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:34:19, skipping insertion in model container [2023-08-30 12:34:19,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:34:19" (3/3) ... [2023-08-30 12:34:19,826 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2023-08-30 12:34:19,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:34:19,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:34:19,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-30 12:34:19,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:34:19,960 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 12:34:20,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 291 transitions, 598 flow [2023-08-30 12:34:20,132 INFO L130 PetriNetUnfolder]: 15/289 cut-off events. [2023-08-30 12:34:20,132 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 12:34:20,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 289 events. 15/289 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 464 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-30 12:34:20,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 291 transitions, 598 flow [2023-08-30 12:34:20,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 280 transitions, 569 flow [2023-08-30 12:34:20,152 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 12:34:20,164 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 280 transitions, 569 flow [2023-08-30 12:34:20,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 280 transitions, 569 flow [2023-08-30 12:34:20,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 280 transitions, 569 flow [2023-08-30 12:34:20,239 INFO L130 PetriNetUnfolder]: 15/280 cut-off events. [2023-08-30 12:34:20,239 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 12:34:20,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 280 events. 15/280 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 423 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-30 12:34:20,251 INFO L119 LiptonReduction]: Number of co-enabled transitions 22068 [2023-08-30 12:34:28,142 INFO L134 LiptonReduction]: Checked pairs total: 50861 [2023-08-30 12:34:28,143 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-08-30 12:34:28,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 12:34:28,160 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ded6cea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 12:34:28,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-30 12:34:28,164 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-30 12:34:28,165 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 12:34:28,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:28,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 12:34:28,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:28,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash -471379928, now seen corresponding path program 1 times [2023-08-30 12:34:28,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:28,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375861784] [2023-08-30 12:34:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:28,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:29,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375861784] [2023-08-30 12:34:29,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375861784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:29,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:29,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:34:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060696533] [2023-08-30 12:34:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:29,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:34:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:29,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:34:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:34:30,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-08-30 12:34:30,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:30,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:30,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-08-30 12:34:30,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:30,934 INFO L130 PetriNetUnfolder]: 3012/4951 cut-off events. [2023-08-30 12:34:30,935 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-08-30 12:34:30,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 4951 events. 3012/4951 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 26092 event pairs, 2374 based on Foata normal form. 0/3452 useless extension candidates. Maximal degree in co-relation 9558. Up to 4712 conditions per place. [2023-08-30 12:34:30,967 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 70 selfloop transitions, 9 changer transitions 0/85 dead transitions. [2023-08-30 12:34:30,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 85 transitions, 337 flow [2023-08-30 12:34:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:30,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1607 transitions. [2023-08-30 12:34:30,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47998805256869775 [2023-08-30 12:34:30,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1607 transitions. [2023-08-30 12:34:30,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1607 transitions. [2023-08-30 12:34:30,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:30,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1607 transitions. [2023-08-30 12:34:31,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:31,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:31,015 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:31,017 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 165 flow. Second operand 6 states and 1607 transitions. [2023-08-30 12:34:31,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 85 transitions, 337 flow [2023-08-30 12:34:31,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 332 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 12:34:31,027 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 216 flow [2023-08-30 12:34:31,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=216, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2023-08-30 12:34:31,032 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2023-08-30 12:34:31,033 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 216 flow [2023-08-30 12:34:31,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:31,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:31,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:31,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 12:34:31,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:31,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1727417925, now seen corresponding path program 1 times [2023-08-30 12:34:31,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:31,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646160224] [2023-08-30 12:34:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:31,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:31,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:31,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646160224] [2023-08-30 12:34:31,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646160224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:31,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:34:31,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012058701] [2023-08-30 12:34:31,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:31,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:34:31,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:34:31,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:34:32,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 12:34:32,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:32,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:32,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 12:34:32,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:33,406 INFO L130 PetriNetUnfolder]: 3238/5330 cut-off events. [2023-08-30 12:34:33,407 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-08-30 12:34:33,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10936 conditions, 5330 events. 3238/5330 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 28893 event pairs, 666 based on Foata normal form. 0/3769 useless extension candidates. Maximal degree in co-relation 9595. Up to 4756 conditions per place. [2023-08-30 12:34:33,435 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 127 selfloop transitions, 17 changer transitions 0/150 dead transitions. [2023-08-30 12:34:33,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 150 transitions, 654 flow [2023-08-30 12:34:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1648 transitions. [2023-08-30 12:34:33,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4922341696535245 [2023-08-30 12:34:33,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1648 transitions. [2023-08-30 12:34:33,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1648 transitions. [2023-08-30 12:34:33,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:33,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1648 transitions. [2023-08-30 12:34:33,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:33,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:33,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:33,452 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 216 flow. Second operand 6 states and 1648 transitions. [2023-08-30 12:34:33,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 150 transitions, 654 flow [2023-08-30 12:34:33,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 150 transitions, 654 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 12:34:33,459 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 310 flow [2023-08-30 12:34:33,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2023-08-30 12:34:33,460 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 14 predicate places. [2023-08-30 12:34:33,461 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 310 flow [2023-08-30 12:34:33,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:33,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:33,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 12:34:33,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:33,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1727873625, now seen corresponding path program 2 times [2023-08-30 12:34:33,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:33,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23106368] [2023-08-30 12:34:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:33,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:33,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:33,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23106368] [2023-08-30 12:34:33,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23106368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:33,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:33,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:34:33,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659012964] [2023-08-30 12:34:33,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:33,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:34:33,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:34:33,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:34:34,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 12:34:34,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:34,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:34,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 12:34:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:34,915 INFO L130 PetriNetUnfolder]: 3284/5402 cut-off events. [2023-08-30 12:34:34,916 INFO L131 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2023-08-30 12:34:34,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11756 conditions, 5402 events. 3284/5402 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 29623 event pairs, 745 based on Foata normal form. 0/3847 useless extension candidates. Maximal degree in co-relation 10590. Up to 4706 conditions per place. [2023-08-30 12:34:34,953 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 119 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-08-30 12:34:34,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 141 transitions, 697 flow [2023-08-30 12:34:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 12:34:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 12:34:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1380 transitions. [2023-08-30 12:34:34,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4946236559139785 [2023-08-30 12:34:34,957 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1380 transitions. [2023-08-30 12:34:34,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1380 transitions. [2023-08-30 12:34:34,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:34,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1380 transitions. [2023-08-30 12:34:34,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:34,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:34,967 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:34,967 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 310 flow. Second operand 5 states and 1380 transitions. [2023-08-30 12:34:34,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 141 transitions, 697 flow [2023-08-30 12:34:34,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 141 transitions, 679 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-30 12:34:34,980 INFO L231 Difference]: Finished difference. Result has 96 places, 98 transitions, 376 flow [2023-08-30 12:34:34,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=376, PETRI_PLACES=96, PETRI_TRANSITIONS=98} [2023-08-30 12:34:34,981 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 20 predicate places. [2023-08-30 12:34:34,981 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 98 transitions, 376 flow [2023-08-30 12:34:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:34,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:34,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:34,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 12:34:34,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:34,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:34,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1665267153, now seen corresponding path program 1 times [2023-08-30 12:34:34,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742775116] [2023-08-30 12:34:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:34,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:35,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:35,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742775116] [2023-08-30 12:34:35,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742775116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:35,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:35,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:34:35,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941825746] [2023-08-30 12:34:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:35,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 12:34:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 12:34:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:34:36,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-08-30 12:34:36,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 98 transitions, 376 flow. Second operand has 5 states, 5 states have (on average 255.8) internal successors, (1279), 5 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:36,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-08-30 12:34:36,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:36,807 INFO L130 PetriNetUnfolder]: 3280/5405 cut-off events. [2023-08-30 12:34:36,808 INFO L131 PetriNetUnfolder]: For 1542/1542 co-relation queries the response was YES. [2023-08-30 12:34:36,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11936 conditions, 5405 events. 3280/5405 cut-off events. For 1542/1542 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 29264 event pairs, 2430 based on Foata normal form. 0/3849 useless extension candidates. Maximal degree in co-relation 10737. Up to 5147 conditions per place. [2023-08-30 12:34:36,840 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 87 selfloop transitions, 10 changer transitions 0/103 dead transitions. [2023-08-30 12:34:36,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 103 transitions, 582 flow [2023-08-30 12:34:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2023-08-30 12:34:36,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4805854241338112 [2023-08-30 12:34:36,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2023-08-30 12:34:36,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2023-08-30 12:34:36,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:36,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2023-08-30 12:34:36,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 268.1666666666667) internal successors, (1609), 6 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,857 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,857 INFO L175 Difference]: Start difference. First operand has 96 places, 98 transitions, 376 flow. Second operand 6 states and 1609 transitions. [2023-08-30 12:34:36,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 103 transitions, 582 flow [2023-08-30 12:34:36,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 574 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-30 12:34:36,863 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 408 flow [2023-08-30 12:34:36,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2023-08-30 12:34:36,864 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 26 predicate places. [2023-08-30 12:34:36,865 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 408 flow [2023-08-30 12:34:36,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 255.8) internal successors, (1279), 5 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:36,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:36,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 12:34:36,866 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:36,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:36,867 INFO L85 PathProgramCache]: Analyzing trace with hash 133239830, now seen corresponding path program 1 times [2023-08-30 12:34:36,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:36,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611168463] [2023-08-30 12:34:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:36,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:36,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611168463] [2023-08-30 12:34:36,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611168463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:36,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:34:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000863941] [2023-08-30 12:34:36,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:36,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:34:36,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:36,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:34:36,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:34:36,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-08-30 12:34:36,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:36,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:36,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-08-30 12:34:36,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:37,715 INFO L130 PetriNetUnfolder]: 5225/8793 cut-off events. [2023-08-30 12:34:37,715 INFO L131 PetriNetUnfolder]: For 2381/2418 co-relation queries the response was YES. [2023-08-30 12:34:37,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19046 conditions, 8793 events. 5225/8793 cut-off events. For 2381/2418 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 55682 event pairs, 2351 based on Foata normal form. 37/6603 useless extension candidates. Maximal degree in co-relation 17492. Up to 4846 conditions per place. [2023-08-30 12:34:37,762 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 159 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-08-30 12:34:37,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 172 transitions, 972 flow [2023-08-30 12:34:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:34:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:34:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-08-30 12:34:37,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5692951015531661 [2023-08-30 12:34:37,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-08-30 12:34:37,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-08-30 12:34:37,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:37,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-08-30 12:34:37,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:37,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:37,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:37,773 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 408 flow. Second operand 3 states and 953 transitions. [2023-08-30 12:34:37,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 172 transitions, 972 flow [2023-08-30 12:34:37,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 172 transitions, 956 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:34:37,781 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 408 flow [2023-08-30 12:34:37,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-08-30 12:34:37,784 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 25 predicate places. [2023-08-30 12:34:37,784 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 408 flow [2023-08-30 12:34:37,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:37,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:37,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:37,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 12:34:37,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:37,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:37,787 INFO L85 PathProgramCache]: Analyzing trace with hash 791606712, now seen corresponding path program 1 times [2023-08-30 12:34:37,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:37,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670983284] [2023-08-30 12:34:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:38,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:38,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670983284] [2023-08-30 12:34:38,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670983284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:38,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:34:38,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281352467] [2023-08-30 12:34:38,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:34:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:34:38,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:34:39,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 12:34:39,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:39,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:39,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 12:34:39,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:41,274 INFO L130 PetriNetUnfolder]: 5786/9558 cut-off events. [2023-08-30 12:34:41,274 INFO L131 PetriNetUnfolder]: For 2413/2413 co-relation queries the response was YES. [2023-08-30 12:34:41,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22022 conditions, 9558 events. 5786/9558 cut-off events. For 2413/2413 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 58105 event pairs, 1166 based on Foata normal form. 82/7379 useless extension candidates. Maximal degree in co-relation 13503. Up to 8279 conditions per place. [2023-08-30 12:34:41,324 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 140 selfloop transitions, 20 changer transitions 0/166 dead transitions. [2023-08-30 12:34:41,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 166 transitions, 928 flow [2023-08-30 12:34:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1652 transitions. [2023-08-30 12:34:41,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934289127837515 [2023-08-30 12:34:41,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1652 transitions. [2023-08-30 12:34:41,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1652 transitions. [2023-08-30 12:34:41,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:41,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1652 transitions. [2023-08-30 12:34:41,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.3333333333333) internal successors, (1652), 6 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:41,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:41,340 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:41,340 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 408 flow. Second operand 6 states and 1652 transitions. [2023-08-30 12:34:41,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 166 transitions, 928 flow [2023-08-30 12:34:41,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:34:41,359 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 474 flow [2023-08-30 12:34:41,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2023-08-30 12:34:41,362 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 30 predicate places. [2023-08-30 12:34:41,362 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 474 flow [2023-08-30 12:34:41,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:41,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:41,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:41,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 12:34:41,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:41,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash -926142348, now seen corresponding path program 2 times [2023-08-30 12:34:41,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:41,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631063657] [2023-08-30 12:34:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:41,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:41,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:41,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631063657] [2023-08-30 12:34:41,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631063657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:41,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:41,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:34:41,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207699667] [2023-08-30 12:34:41,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:41,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:34:41,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:41,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:34:41,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:34:42,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-08-30 12:34:42,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:42,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:42,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-08-30 12:34:42,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:43,351 INFO L130 PetriNetUnfolder]: 6018/9970 cut-off events. [2023-08-30 12:34:43,351 INFO L131 PetriNetUnfolder]: For 4056/4056 co-relation queries the response was YES. [2023-08-30 12:34:43,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23656 conditions, 9970 events. 6018/9970 cut-off events. For 4056/4056 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 60785 event pairs, 3130 based on Foata normal form. 82/7767 useless extension candidates. Maximal degree in co-relation 12052. Up to 8136 conditions per place. [2023-08-30 12:34:43,403 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 141 selfloop transitions, 23 changer transitions 0/170 dead transitions. [2023-08-30 12:34:43,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 170 transitions, 1012 flow [2023-08-30 12:34:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:43,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-08-30 12:34:43,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-08-30 12:34:43,408 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-08-30 12:34:43,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-08-30 12:34:43,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:43,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-08-30 12:34:43,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:43,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:43,417 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:43,417 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 474 flow. Second operand 6 states and 1657 transitions. [2023-08-30 12:34:43,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 170 transitions, 1012 flow [2023-08-30 12:34:43,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 170 transitions, 980 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 12:34:43,437 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 533 flow [2023-08-30 12:34:43,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=533, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2023-08-30 12:34:43,438 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 32 predicate places. [2023-08-30 12:34:43,438 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 533 flow [2023-08-30 12:34:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:43,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:43,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:43,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 12:34:43,439 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:43,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash 89131410, now seen corresponding path program 3 times [2023-08-30 12:34:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843436182] [2023-08-30 12:34:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:43,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:43,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:43,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843436182] [2023-08-30 12:34:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843436182] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:43,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:43,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 12:34:43,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642851521] [2023-08-30 12:34:43,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:43,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 12:34:43,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 12:34:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 12:34:44,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-08-30 12:34:44,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:44,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:44,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-08-30 12:34:44,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:45,437 INFO L130 PetriNetUnfolder]: 6012/9917 cut-off events. [2023-08-30 12:34:45,437 INFO L131 PetriNetUnfolder]: For 6455/6455 co-relation queries the response was YES. [2023-08-30 12:34:45,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24269 conditions, 9917 events. 6012/9917 cut-off events. For 6455/6455 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 60320 event pairs, 1447 based on Foata normal form. 82/7719 useless extension candidates. Maximal degree in co-relation 20101. Up to 7790 conditions per place. [2023-08-30 12:34:45,479 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 141 selfloop transitions, 24 changer transitions 0/171 dead transitions. [2023-08-30 12:34:45,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 171 transitions, 1063 flow [2023-08-30 12:34:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 12:34:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 12:34:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-08-30 12:34:45,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-08-30 12:34:45,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-08-30 12:34:45,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-08-30 12:34:45,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:45,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-08-30 12:34:45,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:45,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:45,493 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:45,493 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 533 flow. Second operand 6 states and 1657 transitions. [2023-08-30 12:34:45,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 171 transitions, 1063 flow [2023-08-30 12:34:45,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 171 transitions, 1021 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 12:34:45,524 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 580 flow [2023-08-30 12:34:45,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2023-08-30 12:34:45,525 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2023-08-30 12:34:45,525 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 580 flow [2023-08-30 12:34:45,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:45,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:45,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:45,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 12:34:45,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:45,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:45,527 INFO L85 PathProgramCache]: Analyzing trace with hash -156159243, now seen corresponding path program 1 times [2023-08-30 12:34:45,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:45,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652436721] [2023-08-30 12:34:45,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:45,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:45,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:45,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652436721] [2023-08-30 12:34:45,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652436721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:45,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:45,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:34:45,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493228923] [2023-08-30 12:34:45,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:45,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:34:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:34:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:34:45,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 12:34:45,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:45,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:45,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 12:34:45,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:46,194 INFO L130 PetriNetUnfolder]: 4278/7094 cut-off events. [2023-08-30 12:34:46,194 INFO L131 PetriNetUnfolder]: For 3356/3369 co-relation queries the response was YES. [2023-08-30 12:34:46,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16468 conditions, 7094 events. 4278/7094 cut-off events. For 3356/3369 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 39308 event pairs, 2135 based on Foata normal form. 185/5285 useless extension candidates. Maximal degree in co-relation 14635. Up to 4581 conditions per place. [2023-08-30 12:34:46,304 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 109 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2023-08-30 12:34:46,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 121 transitions, 712 flow [2023-08-30 12:34:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:34:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:34:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-08-30 12:34:46,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-08-30 12:34:46,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-08-30 12:34:46,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-08-30 12:34:46,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:46,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-08-30 12:34:46,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:46,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:46,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:46,313 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 580 flow. Second operand 3 states and 917 transitions. [2023-08-30 12:34:46,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 121 transitions, 712 flow [2023-08-30 12:34:46,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 625 flow, removed 4 selfloop flow, removed 15 redundant places. [2023-08-30 12:34:46,320 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 327 flow [2023-08-30 12:34:46,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2023-08-30 12:34:46,322 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 18 predicate places. [2023-08-30 12:34:46,324 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 327 flow [2023-08-30 12:34:46,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:46,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:46,325 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:46,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 12:34:46,326 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:46,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash -917278505, now seen corresponding path program 1 times [2023-08-30 12:34:46,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:46,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519820820] [2023-08-30 12:34:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:46,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519820820] [2023-08-30 12:34:46,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519820820] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 12:34:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286724891] [2023-08-30 12:34:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:46,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 12:34:46,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:34:46,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 12:34:46,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 12:34:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:46,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 12:34:46,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 12:34:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:46,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 12:34:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286724891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:46,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 12:34:46,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 12:34:46,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861783483] [2023-08-30 12:34:46,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:46,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 12:34:46,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:46,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 12:34:46,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 12:34:46,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-08-30 12:34:46,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 276.25) internal successors, (1105), 4 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:46,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:46,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-08-30 12:34:46,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:47,311 INFO L130 PetriNetUnfolder]: 3764/6736 cut-off events. [2023-08-30 12:34:47,312 INFO L131 PetriNetUnfolder]: For 1255/1270 co-relation queries the response was YES. [2023-08-30 12:34:47,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14255 conditions, 6736 events. 3764/6736 cut-off events. For 1255/1270 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 40457 event pairs, 119 based on Foata normal form. 13/5095 useless extension candidates. Maximal degree in co-relation 12791. Up to 3217 conditions per place. [2023-08-30 12:34:47,345 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 170 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2023-08-30 12:34:47,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 948 flow [2023-08-30 12:34:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 12:34:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 12:34:47,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1248 transitions. [2023-08-30 12:34:47,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2023-08-30 12:34:47,350 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1248 transitions. [2023-08-30 12:34:47,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1248 transitions. [2023-08-30 12:34:47,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:47,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1248 transitions. [2023-08-30 12:34:47,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:47,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 558.0) internal successors, (2790), 5 states have internal predecessors, (2790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:47,357 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 558.0) internal successors, (2790), 5 states have internal predecessors, (2790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:47,357 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 327 flow. Second operand 4 states and 1248 transitions. [2023-08-30 12:34:47,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 948 flow [2023-08-30 12:34:47,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 183 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:34:47,363 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 324 flow [2023-08-30 12:34:47,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-08-30 12:34:47,364 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-08-30 12:34:47,364 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 324 flow [2023-08-30 12:34:47,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 276.25) internal successors, (1105), 4 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:47,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:47,365 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:47,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 12:34:47,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-30 12:34:47,572 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:47,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash -917278443, now seen corresponding path program 1 times [2023-08-30 12:34:47,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:47,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695261716] [2023-08-30 12:34:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 12:34:47,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:47,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695261716] [2023-08-30 12:34:47,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695261716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:47,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:47,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:34:47,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078333795] [2023-08-30 12:34:47,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:47,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:34:47,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:34:47,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:34:47,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 12:34:47,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:47,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:47,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 12:34:47,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:48,034 INFO L130 PetriNetUnfolder]: 3554/6420 cut-off events. [2023-08-30 12:34:48,035 INFO L131 PetriNetUnfolder]: For 1676/1691 co-relation queries the response was YES. [2023-08-30 12:34:48,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13675 conditions, 6420 events. 3554/6420 cut-off events. For 1676/1691 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 37862 event pairs, 477 based on Foata normal form. 13/4961 useless extension candidates. Maximal degree in co-relation 12310. Up to 4534 conditions per place. [2023-08-30 12:34:48,122 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 111 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2023-08-30 12:34:48,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 673 flow [2023-08-30 12:34:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:34:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:34:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-08-30 12:34:48,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-08-30 12:34:48,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-08-30 12:34:48,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-08-30 12:34:48,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:48,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-08-30 12:34:48,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,130 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 324 flow. Second operand 3 states and 917 transitions. [2023-08-30 12:34:48,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 673 flow [2023-08-30 12:34:48,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 126 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 12:34:48,136 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 333 flow [2023-08-30 12:34:48,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-08-30 12:34:48,137 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-08-30 12:34:48,137 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 333 flow [2023-08-30 12:34:48,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:48,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:48,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 12:34:48,138 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:48,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:48,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1914224002, now seen corresponding path program 1 times [2023-08-30 12:34:48,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:48,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020927618] [2023-08-30 12:34:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:48,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:48,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020927618] [2023-08-30 12:34:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020927618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:48,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:48,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:34:48,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063650355] [2023-08-30 12:34:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:48,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:34:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:48,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:34:48,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:34:48,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-30 12:34:48,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:48,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-30 12:34:48,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:48,698 INFO L130 PetriNetUnfolder]: 4137/7171 cut-off events. [2023-08-30 12:34:48,698 INFO L131 PetriNetUnfolder]: For 4724/4733 co-relation queries the response was YES. [2023-08-30 12:34:48,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17065 conditions, 7171 events. 4137/7171 cut-off events. For 4724/4733 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 42190 event pairs, 1699 based on Foata normal form. 9/5613 useless extension candidates. Maximal degree in co-relation 15486. Up to 5966 conditions per place. [2023-08-30 12:34:48,734 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 115 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2023-08-30 12:34:48,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 128 transitions, 684 flow [2023-08-30 12:34:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:34:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:34:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-08-30 12:34:48,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5501792114695341 [2023-08-30 12:34:48,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-08-30 12:34:48,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-08-30 12:34:48,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:48,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-08-30 12:34:48,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,743 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 333 flow. Second operand 3 states and 921 transitions. [2023-08-30 12:34:48,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 128 transitions, 684 flow [2023-08-30 12:34:48,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 676 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:34:48,749 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 349 flow [2023-08-30 12:34:48,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2023-08-30 12:34:48,750 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 21 predicate places. [2023-08-30 12:34:48,750 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 349 flow [2023-08-30 12:34:48,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:48,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:48,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:48,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 12:34:48,751 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:48,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash -784742033, now seen corresponding path program 1 times [2023-08-30 12:34:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:48,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217115800] [2023-08-30 12:34:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:49,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217115800] [2023-08-30 12:34:49,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217115800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:49,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:49,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 12:34:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282561932] [2023-08-30 12:34:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:49,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 12:34:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:49,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 12:34:49,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-30 12:34:51,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 558 [2023-08-30 12:34:51,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 349 flow. Second operand has 14 states, 14 states have (on average 234.35714285714286) internal successors, (3281), 14 states have internal predecessors, (3281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:51,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:51,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 558 [2023-08-30 12:34:51,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:52,894 INFO L130 PetriNetUnfolder]: 4284/7415 cut-off events. [2023-08-30 12:34:52,894 INFO L131 PetriNetUnfolder]: For 3660/3660 co-relation queries the response was YES. [2023-08-30 12:34:52,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18171 conditions, 7415 events. 4284/7415 cut-off events. For 3660/3660 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 41629 event pairs, 3472 based on Foata normal form. 0/6015 useless extension candidates. Maximal degree in co-relation 16520. Up to 6919 conditions per place. [2023-08-30 12:34:52,935 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 79 selfloop transitions, 28 changer transitions 1/115 dead transitions. [2023-08-30 12:34:52,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 675 flow [2023-08-30 12:34:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 12:34:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 12:34:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3595 transitions. [2023-08-30 12:34:52,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295101553166069 [2023-08-30 12:34:52,944 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3595 transitions. [2023-08-30 12:34:52,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3595 transitions. [2023-08-30 12:34:52,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:52,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3595 transitions. [2023-08-30 12:34:52,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 239.66666666666666) internal successors, (3595), 15 states have internal predecessors, (3595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:52,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:52,966 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:52,966 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 349 flow. Second operand 15 states and 3595 transitions. [2023-08-30 12:34:52,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 115 transitions, 675 flow [2023-08-30 12:34:52,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:34:52,977 INFO L231 Difference]: Finished difference. Result has 118 places, 104 transitions, 525 flow [2023-08-30 12:34:52,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=525, PETRI_PLACES=118, PETRI_TRANSITIONS=104} [2023-08-30 12:34:52,979 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 42 predicate places. [2023-08-30 12:34:52,979 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 525 flow [2023-08-30 12:34:52,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 234.35714285714286) internal successors, (3281), 14 states have internal predecessors, (3281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:52,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:52,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:52,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 12:34:52,980 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:52,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash -784742058, now seen corresponding path program 1 times [2023-08-30 12:34:52,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:52,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028520123] [2023-08-30 12:34:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:53,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:53,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:53,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028520123] [2023-08-30 12:34:53,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028520123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:53,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:53,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:34:53,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033684316] [2023-08-30 12:34:53,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:53,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:34:53,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:53,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:34:53,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:34:54,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 558 [2023-08-30 12:34:54,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 104 transitions, 525 flow. Second operand has 13 states, 13 states have (on average 238.46153846153845) internal successors, (3100), 13 states have internal predecessors, (3100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:54,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:54,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 558 [2023-08-30 12:34:54,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:34:57,479 INFO L130 PetriNetUnfolder]: 13635/23372 cut-off events. [2023-08-30 12:34:57,479 INFO L131 PetriNetUnfolder]: For 9268/9268 co-relation queries the response was YES. [2023-08-30 12:34:57,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57303 conditions, 23372 events. 13635/23372 cut-off events. For 9268/9268 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 166983 event pairs, 4189 based on Foata normal form. 0/18556 useless extension candidates. Maximal degree in co-relation 40566. Up to 5784 conditions per place. [2023-08-30 12:34:57,578 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 363 selfloop transitions, 62 changer transitions 3/435 dead transitions. [2023-08-30 12:34:57,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 435 transitions, 2434 flow [2023-08-30 12:34:57,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 12:34:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 12:34:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4649 transitions. [2023-08-30 12:34:57,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46286340103544404 [2023-08-30 12:34:57,589 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4649 transitions. [2023-08-30 12:34:57,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4649 transitions. [2023-08-30 12:34:57,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:34:57,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4649 transitions. [2023-08-30 12:34:57,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 258.27777777777777) internal successors, (4649), 18 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:57,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:57,615 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:57,615 INFO L175 Difference]: Start difference. First operand has 118 places, 104 transitions, 525 flow. Second operand 18 states and 4649 transitions. [2023-08-30 12:34:57,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 435 transitions, 2434 flow [2023-08-30 12:34:57,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 435 transitions, 2372 flow, removed 18 selfloop flow, removed 6 redundant places. [2023-08-30 12:34:57,642 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 748 flow [2023-08-30 12:34:57,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=748, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2023-08-30 12:34:57,643 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 60 predicate places. [2023-08-30 12:34:57,643 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 748 flow [2023-08-30 12:34:57,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 238.46153846153845) internal successors, (3100), 13 states have internal predecessors, (3100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:57,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:34:57,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:34:57,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 12:34:57,645 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:34:57,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:34:57,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2011241202, now seen corresponding path program 1 times [2023-08-30 12:34:57,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:34:57,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466954503] [2023-08-30 12:34:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:34:57,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:34:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:34:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:34:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:34:58,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466954503] [2023-08-30 12:34:58,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466954503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:34:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:34:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 12:34:58,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749567887] [2023-08-30 12:34:58,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:34:58,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 12:34:58,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:34:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 12:34:58,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-08-30 12:34:59,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 12:34:59,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 748 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:34:59,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:34:59,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 12:34:59,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:02,611 INFO L130 PetriNetUnfolder]: 13754/23713 cut-off events. [2023-08-30 12:35:02,611 INFO L131 PetriNetUnfolder]: For 13625/13625 co-relation queries the response was YES. [2023-08-30 12:35:02,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62000 conditions, 23713 events. 13754/23713 cut-off events. For 13625/13625 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 171183 event pairs, 9021 based on Foata normal form. 0/19476 useless extension candidates. Maximal degree in co-relation 61842. Up to 20753 conditions per place. [2023-08-30 12:35:02,733 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 200 selfloop transitions, 38 changer transitions 3/248 dead transitions. [2023-08-30 12:35:02,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 248 transitions, 1749 flow [2023-08-30 12:35:02,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 12:35:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 12:35:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3387 transitions. [2023-08-30 12:35:02,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43356374807987713 [2023-08-30 12:35:02,740 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3387 transitions. [2023-08-30 12:35:02,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3387 transitions. [2023-08-30 12:35:02,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:02,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3387 transitions. [2023-08-30 12:35:02,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 241.92857142857142) internal successors, (3387), 14 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:02,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:02,756 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:02,756 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 748 flow. Second operand 14 states and 3387 transitions. [2023-08-30 12:35:02,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 248 transitions, 1749 flow [2023-08-30 12:35:02,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 248 transitions, 1698 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-30 12:35:02,800 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 853 flow [2023-08-30 12:35:02,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=853, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2023-08-30 12:35:02,801 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 72 predicate places. [2023-08-30 12:35:02,801 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 853 flow [2023-08-30 12:35:02,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:02,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:02,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:02,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 12:35:02,803 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:02,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash 317311393, now seen corresponding path program 1 times [2023-08-30 12:35:02,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:02,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094128860] [2023-08-30 12:35:02,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:02,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094128860] [2023-08-30 12:35:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094128860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:03,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:03,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 12:35:03,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172326170] [2023-08-30 12:35:03,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:03,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 12:35:03,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:03,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 12:35:03,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 12:35:04,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:35:04,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 853 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:04,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:04,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:35:04,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:08,317 INFO L130 PetriNetUnfolder]: 18414/31350 cut-off events. [2023-08-30 12:35:08,317 INFO L131 PetriNetUnfolder]: For 17690/17690 co-relation queries the response was YES. [2023-08-30 12:35:08,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82558 conditions, 31350 events. 18414/31350 cut-off events. For 17690/17690 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 224909 event pairs, 6700 based on Foata normal form. 103/25666 useless extension candidates. Maximal degree in co-relation 82399. Up to 16871 conditions per place. [2023-08-30 12:35:08,507 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 361 selfloop transitions, 67 changer transitions 0/435 dead transitions. [2023-08-30 12:35:08,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 435 transitions, 2680 flow [2023-08-30 12:35:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 12:35:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 12:35:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3856 transitions. [2023-08-30 12:35:08,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46069295101553165 [2023-08-30 12:35:08,513 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3856 transitions. [2023-08-30 12:35:08,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3856 transitions. [2023-08-30 12:35:08,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:08,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3856 transitions. [2023-08-30 12:35:08,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 257.06666666666666) internal successors, (3856), 15 states have internal predecessors, (3856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:08,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:08,528 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:08,528 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 853 flow. Second operand 15 states and 3856 transitions. [2023-08-30 12:35:08,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 435 transitions, 2680 flow [2023-08-30 12:35:08,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 435 transitions, 2629 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-30 12:35:08,603 INFO L231 Difference]: Finished difference. Result has 162 places, 162 transitions, 1130 flow [2023-08-30 12:35:08,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1130, PETRI_PLACES=162, PETRI_TRANSITIONS=162} [2023-08-30 12:35:08,604 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 86 predicate places. [2023-08-30 12:35:08,604 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 162 transitions, 1130 flow [2023-08-30 12:35:08,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:08,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:08,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:08,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 12:35:08,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:08,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash 317311418, now seen corresponding path program 2 times [2023-08-30 12:35:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779939889] [2023-08-30 12:35:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:08,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:09,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:09,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779939889] [2023-08-30 12:35:09,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779939889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:09,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:09,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 12:35:09,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303953301] [2023-08-30 12:35:09,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:09,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 12:35:09,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:09,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 12:35:09,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-08-30 12:35:10,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 12:35:10,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 162 transitions, 1130 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:10,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:10,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 12:35:10,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:14,126 INFO L130 PetriNetUnfolder]: 18562/32039 cut-off events. [2023-08-30 12:35:14,126 INFO L131 PetriNetUnfolder]: For 25986/25986 co-relation queries the response was YES. [2023-08-30 12:35:14,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88642 conditions, 32039 events. 18562/32039 cut-off events. For 25986/25986 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 232967 event pairs, 9506 based on Foata normal form. 26/26414 useless extension candidates. Maximal degree in co-relation 60616. Up to 27692 conditions per place. [2023-08-30 12:35:14,310 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 222 selfloop transitions, 44 changer transitions 3/276 dead transitions. [2023-08-30 12:35:14,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 276 transitions, 2200 flow [2023-08-30 12:35:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 12:35:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 12:35:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3384 transitions. [2023-08-30 12:35:14,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43317972350230416 [2023-08-30 12:35:14,314 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3384 transitions. [2023-08-30 12:35:14,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3384 transitions. [2023-08-30 12:35:14,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:14,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3384 transitions. [2023-08-30 12:35:14,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 241.71428571428572) internal successors, (3384), 14 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:14,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:14,322 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:14,322 INFO L175 Difference]: Start difference. First operand has 162 places, 162 transitions, 1130 flow. Second operand 14 states and 3384 transitions. [2023-08-30 12:35:14,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 276 transitions, 2200 flow [2023-08-30 12:35:14,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 276 transitions, 2169 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 12:35:14,394 INFO L231 Difference]: Finished difference. Result has 176 places, 168 transitions, 1292 flow [2023-08-30 12:35:14,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1292, PETRI_PLACES=176, PETRI_TRANSITIONS=168} [2023-08-30 12:35:14,395 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 100 predicate places. [2023-08-30 12:35:14,395 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 168 transitions, 1292 flow [2023-08-30 12:35:14,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:14,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:14,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:14,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 12:35:14,396 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:14,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash -643986808, now seen corresponding path program 3 times [2023-08-30 12:35:14,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:14,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807473089] [2023-08-30 12:35:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:15,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:15,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807473089] [2023-08-30 12:35:15,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807473089] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:15,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:15,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 12:35:15,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184491034] [2023-08-30 12:35:15,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:15,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 12:35:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:15,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 12:35:15,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-08-30 12:35:17,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 12:35:17,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 168 transitions, 1292 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:17,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:17,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 12:35:17,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:20,776 INFO L130 PetriNetUnfolder]: 18741/32472 cut-off events. [2023-08-30 12:35:20,776 INFO L131 PetriNetUnfolder]: For 29444/29452 co-relation queries the response was YES. [2023-08-30 12:35:20,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91148 conditions, 32472 events. 18741/32472 cut-off events. For 29444/29452 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 238400 event pairs, 9441 based on Foata normal form. 26/26826 useless extension candidates. Maximal degree in co-relation 90979. Up to 27242 conditions per place. [2023-08-30 12:35:20,985 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 233 selfloop transitions, 52 changer transitions 3/295 dead transitions. [2023-08-30 12:35:20,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 295 transitions, 2465 flow [2023-08-30 12:35:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 12:35:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 12:35:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3855 transitions. [2023-08-30 12:35:20,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43178763440860213 [2023-08-30 12:35:20,994 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3855 transitions. [2023-08-30 12:35:20,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3855 transitions. [2023-08-30 12:35:20,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:20,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3855 transitions. [2023-08-30 12:35:21,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 240.9375) internal successors, (3855), 16 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:21,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:21,007 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:21,007 INFO L175 Difference]: Start difference. First operand has 176 places, 168 transitions, 1292 flow. Second operand 16 states and 3855 transitions. [2023-08-30 12:35:21,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 295 transitions, 2465 flow [2023-08-30 12:35:21,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 295 transitions, 2407 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 12:35:21,129 INFO L231 Difference]: Finished difference. Result has 187 places, 173 transitions, 1420 flow [2023-08-30 12:35:21,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1420, PETRI_PLACES=187, PETRI_TRANSITIONS=173} [2023-08-30 12:35:21,129 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 111 predicate places. [2023-08-30 12:35:21,129 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 173 transitions, 1420 flow [2023-08-30 12:35:21,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:21,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:21,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:21,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 12:35:21,131 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:21,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1443120322, now seen corresponding path program 4 times [2023-08-30 12:35:21,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:21,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212609380] [2023-08-30 12:35:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:22,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:22,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212609380] [2023-08-30 12:35:22,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212609380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:22,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:22,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 12:35:22,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948637666] [2023-08-30 12:35:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:22,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 12:35:22,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:22,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 12:35:22,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-08-30 12:35:23,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 12:35:23,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 173 transitions, 1420 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:23,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:23,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 12:35:23,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:27,049 INFO L130 PetriNetUnfolder]: 18751/32554 cut-off events. [2023-08-30 12:35:27,049 INFO L131 PetriNetUnfolder]: For 32951/32959 co-relation queries the response was YES. [2023-08-30 12:35:27,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92226 conditions, 32554 events. 18751/32554 cut-off events. For 32951/32959 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 239135 event pairs, 9187 based on Foata normal form. 26/26897 useless extension candidates. Maximal degree in co-relation 92054. Up to 27122 conditions per place. [2023-08-30 12:35:27,259 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 230 selfloop transitions, 49 changer transitions 3/289 dead transitions. [2023-08-30 12:35:27,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 289 transitions, 2526 flow [2023-08-30 12:35:27,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 12:35:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 12:35:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3617 transitions. [2023-08-30 12:35:27,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43213859020310635 [2023-08-30 12:35:27,263 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3617 transitions. [2023-08-30 12:35:27,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3617 transitions. [2023-08-30 12:35:27,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:27,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3617 transitions. [2023-08-30 12:35:27,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 241.13333333333333) internal successors, (3617), 15 states have internal predecessors, (3617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:27,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:27,275 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:27,275 INFO L175 Difference]: Start difference. First operand has 187 places, 173 transitions, 1420 flow. Second operand 15 states and 3617 transitions. [2023-08-30 12:35:27,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 289 transitions, 2526 flow [2023-08-30 12:35:27,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 289 transitions, 2429 flow, removed 11 selfloop flow, removed 11 redundant places. [2023-08-30 12:35:27,388 INFO L231 Difference]: Finished difference. Result has 192 places, 175 transitions, 1474 flow [2023-08-30 12:35:27,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1327, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1474, PETRI_PLACES=192, PETRI_TRANSITIONS=175} [2023-08-30 12:35:27,389 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 116 predicate places. [2023-08-30 12:35:27,389 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 175 transitions, 1474 flow [2023-08-30 12:35:27,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:27,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:27,390 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:27,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 12:35:27,390 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:27,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash 452925267, now seen corresponding path program 1 times [2023-08-30 12:35:27,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:27,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627300904] [2023-08-30 12:35:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:27,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 12:35:27,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:27,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627300904] [2023-08-30 12:35:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627300904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:27,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:27,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:35:27,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3207962] [2023-08-30 12:35:27,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:27,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:35:27,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:35:27,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:35:27,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 558 [2023-08-30 12:35:27,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 175 transitions, 1474 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:27,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:27,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 558 [2023-08-30 12:35:27,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:30,568 INFO L130 PetriNetUnfolder]: 16594/28910 cut-off events. [2023-08-30 12:35:30,569 INFO L131 PetriNetUnfolder]: For 34433/34442 co-relation queries the response was YES. [2023-08-30 12:35:30,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83079 conditions, 28910 events. 16594/28910 cut-off events. For 34433/34442 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 208800 event pairs, 6894 based on Foata normal form. 9/24561 useless extension candidates. Maximal degree in co-relation 82905. Up to 21524 conditions per place. [2023-08-30 12:35:30,768 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 186 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2023-08-30 12:35:30,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 206 transitions, 1985 flow [2023-08-30 12:35:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:35:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:35:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2023-08-30 12:35:30,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53584229390681 [2023-08-30 12:35:30,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 897 transitions. [2023-08-30 12:35:30,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 897 transitions. [2023-08-30 12:35:30,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:30,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 897 transitions. [2023-08-30 12:35:30,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:30,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:30,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:30,771 INFO L175 Difference]: Start difference. First operand has 192 places, 175 transitions, 1474 flow. Second operand 3 states and 897 transitions. [2023-08-30 12:35:30,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 206 transitions, 1985 flow [2023-08-30 12:35:30,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 206 transitions, 1917 flow, removed 4 selfloop flow, removed 10 redundant places. [2023-08-30 12:35:30,870 INFO L231 Difference]: Finished difference. Result has 183 places, 174 transitions, 1414 flow [2023-08-30 12:35:30,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=183, PETRI_TRANSITIONS=174} [2023-08-30 12:35:31,039 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 107 predicate places. [2023-08-30 12:35:31,039 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 174 transitions, 1414 flow [2023-08-30 12:35:31,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:31,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:31,039 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:31,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 12:35:31,039 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:31,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash 452925224, now seen corresponding path program 1 times [2023-08-30 12:35:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:31,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997461686] [2023-08-30 12:35:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:31,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:31,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997461686] [2023-08-30 12:35:31,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997461686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:31,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:31,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 12:35:31,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021920867] [2023-08-30 12:35:31,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:31,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:35:31,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:31,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:35:31,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:35:31,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-30 12:35:31,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:31,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:31,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-30 12:35:31,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:33,866 INFO L130 PetriNetUnfolder]: 14864/26128 cut-off events. [2023-08-30 12:35:33,866 INFO L131 PetriNetUnfolder]: For 36364/36373 co-relation queries the response was YES. [2023-08-30 12:35:33,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76420 conditions, 26128 events. 14864/26128 cut-off events. For 36364/36373 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 186173 event pairs, 7692 based on Foata normal form. 1019/23566 useless extension candidates. Maximal degree in co-relation 76247. Up to 22832 conditions per place. [2023-08-30 12:35:34,016 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 164 selfloop transitions, 1 changer transitions 0/181 dead transitions. [2023-08-30 12:35:34,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 181 transitions, 1784 flow [2023-08-30 12:35:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:35:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:35:34,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-08-30 12:35:34,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-08-30 12:35:34,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-08-30 12:35:34,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-08-30 12:35:34,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:34,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-08-30 12:35:34,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:34,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:34,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:34,019 INFO L175 Difference]: Start difference. First operand has 183 places, 174 transitions, 1414 flow. Second operand 3 states and 881 transitions. [2023-08-30 12:35:34,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 181 transitions, 1784 flow [2023-08-30 12:35:34,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 181 transitions, 1780 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:35:34,118 INFO L231 Difference]: Finished difference. Result has 182 places, 172 transitions, 1404 flow [2023-08-30 12:35:34,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=182, PETRI_TRANSITIONS=172} [2023-08-30 12:35:34,119 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 106 predicate places. [2023-08-30 12:35:34,119 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 172 transitions, 1404 flow [2023-08-30 12:35:34,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:34,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:34,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:34,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 12:35:34,119 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:34,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -742070962, now seen corresponding path program 1 times [2023-08-30 12:35:34,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:34,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998776435] [2023-08-30 12:35:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:34,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:35,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:35,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998776435] [2023-08-30 12:35:35,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998776435] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:35,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:35,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:35:35,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879461028] [2023-08-30 12:35:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:35,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:35:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:35,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:35:35,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:35:36,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 558 [2023-08-30 12:35:36,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 172 transitions, 1404 flow. Second operand has 13 states, 13 states have (on average 230.69230769230768) internal successors, (2999), 13 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:36,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:36,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 558 [2023-08-30 12:35:36,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:40,627 INFO L130 PetriNetUnfolder]: 16172/28152 cut-off events. [2023-08-30 12:35:40,628 INFO L131 PetriNetUnfolder]: For 34145/34145 co-relation queries the response was YES. [2023-08-30 12:35:40,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82595 conditions, 28152 events. 16172/28152 cut-off events. For 34145/34145 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 199476 event pairs, 12434 based on Foata normal form. 0/24474 useless extension candidates. Maximal degree in co-relation 82421. Up to 24976 conditions per place. [2023-08-30 12:35:40,823 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 200 selfloop transitions, 36 changer transitions 3/246 dead transitions. [2023-08-30 12:35:40,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 246 transitions, 2294 flow [2023-08-30 12:35:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 12:35:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 12:35:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3111 transitions. [2023-08-30 12:35:40,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42886683209263854 [2023-08-30 12:35:40,827 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3111 transitions. [2023-08-30 12:35:40,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3111 transitions. [2023-08-30 12:35:40,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3111 transitions. [2023-08-30 12:35:40,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 239.30769230769232) internal successors, (3111), 13 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:40,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:40,836 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:40,836 INFO L175 Difference]: Start difference. First operand has 182 places, 172 transitions, 1404 flow. Second operand 13 states and 3111 transitions. [2023-08-30 12:35:40,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 246 transitions, 2294 flow [2023-08-30 12:35:40,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 246 transitions, 2292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:35:40,972 INFO L231 Difference]: Finished difference. Result has 199 places, 183 transitions, 1649 flow [2023-08-30 12:35:40,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1403, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1649, PETRI_PLACES=199, PETRI_TRANSITIONS=183} [2023-08-30 12:35:40,973 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 123 predicate places. [2023-08-30 12:35:40,973 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 183 transitions, 1649 flow [2023-08-30 12:35:40,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 230.69230769230768) internal successors, (2999), 13 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:40,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:40,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:40,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 12:35:40,974 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:40,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash -742070961, now seen corresponding path program 1 times [2023-08-30 12:35:40,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:40,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103842255] [2023-08-30 12:35:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:40,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:41,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103842255] [2023-08-30 12:35:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103842255] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:41,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 12:35:41,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52156662] [2023-08-30 12:35:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:41,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 12:35:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 12:35:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 12:35:42,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 12:35:42,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 183 transitions, 1649 flow. Second operand has 12 states, 12 states have (on average 231.83333333333334) internal successors, (2782), 12 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:42,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:42,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 12:35:42,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:35:49,394 INFO L130 PetriNetUnfolder]: 30579/52828 cut-off events. [2023-08-30 12:35:49,395 INFO L131 PetriNetUnfolder]: For 60416/60426 co-relation queries the response was YES. [2023-08-30 12:35:49,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155550 conditions, 52828 events. 30579/52828 cut-off events. For 60416/60426 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 410874 event pairs, 6879 based on Foata normal form. 0/47245 useless extension candidates. Maximal degree in co-relation 155368. Up to 12053 conditions per place. [2023-08-30 12:35:49,871 INFO L137 encePairwiseOnDemand]: 534/558 looper letters, 415 selfloop transitions, 155 changer transitions 3/580 dead transitions. [2023-08-30 12:35:49,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 580 transitions, 4681 flow [2023-08-30 12:35:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 12:35:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 12:35:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4503 transitions. [2023-08-30 12:35:49,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4483273596176822 [2023-08-30 12:35:49,876 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4503 transitions. [2023-08-30 12:35:49,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4503 transitions. [2023-08-30 12:35:49,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:35:49,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4503 transitions. [2023-08-30 12:35:49,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.16666666666666) internal successors, (4503), 18 states have internal predecessors, (4503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:49,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:49,890 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:49,890 INFO L175 Difference]: Start difference. First operand has 199 places, 183 transitions, 1649 flow. Second operand 18 states and 4503 transitions. [2023-08-30 12:35:49,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 580 transitions, 4681 flow [2023-08-30 12:35:50,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 580 transitions, 4634 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-30 12:35:50,247 INFO L231 Difference]: Finished difference. Result has 217 places, 280 transitions, 2965 flow [2023-08-30 12:35:50,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2965, PETRI_PLACES=217, PETRI_TRANSITIONS=280} [2023-08-30 12:35:50,248 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 141 predicate places. [2023-08-30 12:35:50,248 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 280 transitions, 2965 flow [2023-08-30 12:35:50,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 231.83333333333334) internal successors, (2782), 12 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:50,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:35:50,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:35:50,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 12:35:50,249 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:35:50,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:35:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2108738361, now seen corresponding path program 1 times [2023-08-30 12:35:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:35:50,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196046255] [2023-08-30 12:35:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:35:50,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:35:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:35:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:35:51,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:35:51,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196046255] [2023-08-30 12:35:51,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196046255] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:35:51,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:35:51,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:35:51,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804838854] [2023-08-30 12:35:51,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:35:51,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:35:51,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:35:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:35:51,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:35:53,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:35:53,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 280 transitions, 2965 flow. Second operand has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:35:53,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:35:53,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:35:53,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:01,193 INFO L130 PetriNetUnfolder]: 31368/54385 cut-off events. [2023-08-30 12:36:01,193 INFO L131 PetriNetUnfolder]: For 110576/110576 co-relation queries the response was YES. [2023-08-30 12:36:01,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182710 conditions, 54385 events. 31368/54385 cut-off events. For 110576/110576 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 427019 event pairs, 22991 based on Foata normal form. 52/49693 useless extension candidates. Maximal degree in co-relation 182520. Up to 47751 conditions per place. [2023-08-30 12:36:01,720 INFO L137 encePairwiseOnDemand]: 544/558 looper letters, 343 selfloop transitions, 44 changer transitions 3/397 dead transitions. [2023-08-30 12:36:01,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 397 transitions, 4437 flow [2023-08-30 12:36:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 12:36:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 12:36:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3202 transitions. [2023-08-30 12:36:01,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44141163496002206 [2023-08-30 12:36:01,724 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3202 transitions. [2023-08-30 12:36:01,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3202 transitions. [2023-08-30 12:36:01,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:01,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3202 transitions. [2023-08-30 12:36:01,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 246.30769230769232) internal successors, (3202), 13 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:01,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:01,732 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:01,733 INFO L175 Difference]: Start difference. First operand has 217 places, 280 transitions, 2965 flow. Second operand 13 states and 3202 transitions. [2023-08-30 12:36:01,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 397 transitions, 4437 flow [2023-08-30 12:36:02,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 397 transitions, 4340 flow, removed 29 selfloop flow, removed 10 redundant places. [2023-08-30 12:36:02,183 INFO L231 Difference]: Finished difference. Result has 227 places, 288 transitions, 3170 flow [2023-08-30 12:36:02,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2874, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3170, PETRI_PLACES=227, PETRI_TRANSITIONS=288} [2023-08-30 12:36:02,184 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 151 predicate places. [2023-08-30 12:36:02,184 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 288 transitions, 3170 flow [2023-08-30 12:36:02,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:02,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:02,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:02,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 12:36:02,185 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:02,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash 426436787, now seen corresponding path program 2 times [2023-08-30 12:36:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:02,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084762954] [2023-08-30 12:36:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:02,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:03,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:03,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084762954] [2023-08-30 12:36:03,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084762954] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:03,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:03,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:36:03,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109526851] [2023-08-30 12:36:03,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:03,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:36:03,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:03,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:36:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:36:03,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 558 [2023-08-30 12:36:03,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 288 transitions, 3170 flow. Second operand has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:03,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:03,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 558 [2023-08-30 12:36:03,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:11,458 INFO L130 PetriNetUnfolder]: 31096/54039 cut-off events. [2023-08-30 12:36:11,458 INFO L131 PetriNetUnfolder]: For 107566/107566 co-relation queries the response was YES. [2023-08-30 12:36:12,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180047 conditions, 54039 events. 31096/54039 cut-off events. For 107566/107566 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 424022 event pairs, 18501 based on Foata normal form. 104/49043 useless extension candidates. Maximal degree in co-relation 179855. Up to 45395 conditions per place. [2023-08-30 12:36:12,281 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 314 selfloop transitions, 51 changer transitions 3/375 dead transitions. [2023-08-30 12:36:12,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 375 transitions, 4322 flow [2023-08-30 12:36:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 12:36:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 12:36:12,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2759 transitions. [2023-08-30 12:36:12,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2023-08-30 12:36:12,283 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2759 transitions. [2023-08-30 12:36:12,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2759 transitions. [2023-08-30 12:36:12,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:12,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2759 transitions. [2023-08-30 12:36:12,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 250.8181818181818) internal successors, (2759), 11 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:12,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 558.0) internal successors, (6696), 12 states have internal predecessors, (6696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:12,290 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 558.0) internal successors, (6696), 12 states have internal predecessors, (6696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:12,291 INFO L175 Difference]: Start difference. First operand has 227 places, 288 transitions, 3170 flow. Second operand 11 states and 2759 transitions. [2023-08-30 12:36:12,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 375 transitions, 4322 flow [2023-08-30 12:36:12,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 375 transitions, 4283 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 12:36:12,691 INFO L231 Difference]: Finished difference. Result has 234 places, 289 transitions, 3264 flow [2023-08-30 12:36:12,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3133, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3264, PETRI_PLACES=234, PETRI_TRANSITIONS=289} [2023-08-30 12:36:12,692 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 158 predicate places. [2023-08-30 12:36:12,692 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 289 transitions, 3264 flow [2023-08-30 12:36:12,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:12,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:12,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:12,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 12:36:12,693 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:12,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1094065461, now seen corresponding path program 3 times [2023-08-30 12:36:12,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:12,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010045535] [2023-08-30 12:36:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:13,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010045535] [2023-08-30 12:36:13,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010045535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:13,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:13,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:36:13,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950048028] [2023-08-30 12:36:13,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:13,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:36:13,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:13,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:36:13,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:36:14,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:36:14,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 289 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:14,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:14,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:36:14,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:22,668 INFO L130 PetriNetUnfolder]: 32375/56119 cut-off events. [2023-08-30 12:36:22,669 INFO L131 PetriNetUnfolder]: For 114671/114675 co-relation queries the response was YES. [2023-08-30 12:36:23,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187416 conditions, 56119 events. 32375/56119 cut-off events. For 114671/114675 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 441346 event pairs, 13081 based on Foata normal form. 100/51021 useless extension candidates. Maximal degree in co-relation 187223. Up to 44526 conditions per place. [2023-08-30 12:36:23,293 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 357 selfloop transitions, 68 changer transitions 0/432 dead transitions. [2023-08-30 12:36:23,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 432 transitions, 4815 flow [2023-08-30 12:36:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 12:36:23,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 12:36:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3227 transitions. [2023-08-30 12:36:23,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448580093741384 [2023-08-30 12:36:23,297 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3227 transitions. [2023-08-30 12:36:23,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3227 transitions. [2023-08-30 12:36:23,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:23,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3227 transitions. [2023-08-30 12:36:23,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 248.23076923076923) internal successors, (3227), 13 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:23,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:23,305 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:23,305 INFO L175 Difference]: Start difference. First operand has 234 places, 289 transitions, 3264 flow. Second operand 13 states and 3227 transitions. [2023-08-30 12:36:23,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 432 transitions, 4815 flow [2023-08-30 12:36:24,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 432 transitions, 4719 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-30 12:36:24,004 INFO L231 Difference]: Finished difference. Result has 240 places, 301 transitions, 3488 flow [2023-08-30 12:36:24,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3168, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3488, PETRI_PLACES=240, PETRI_TRANSITIONS=301} [2023-08-30 12:36:24,005 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 164 predicate places. [2023-08-30 12:36:24,005 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 301 transitions, 3488 flow [2023-08-30 12:36:24,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:24,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:24,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:24,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 12:36:24,005 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:24,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash 608756118, now seen corresponding path program 1 times [2023-08-30 12:36:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449267368] [2023-08-30 12:36:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:24,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:24,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:24,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449267368] [2023-08-30 12:36:24,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449267368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:24,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:24,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:36:24,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352268853] [2023-08-30 12:36:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:24,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:36:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:36:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:36:25,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 558 [2023-08-30 12:36:25,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 301 transitions, 3488 flow. Second operand has 13 states, 13 states have (on average 230.76923076923077) internal successors, (3000), 13 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:25,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:25,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 558 [2023-08-30 12:36:25,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:34,551 INFO L130 PetriNetUnfolder]: 35270/60758 cut-off events. [2023-08-30 12:36:34,551 INFO L131 PetriNetUnfolder]: For 139632/139636 co-relation queries the response was YES. [2023-08-30 12:36:35,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207933 conditions, 60758 events. 35270/60758 cut-off events. For 139632/139636 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 476697 event pairs, 12296 based on Foata normal form. 234/55545 useless extension candidates. Maximal degree in co-relation 207737. Up to 27081 conditions per place. [2023-08-30 12:36:35,527 INFO L137 encePairwiseOnDemand]: 538/558 looper letters, 426 selfloop transitions, 178 changer transitions 0/611 dead transitions. [2023-08-30 12:36:35,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 611 transitions, 6309 flow [2023-08-30 12:36:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 12:36:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 12:36:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3747 transitions. [2023-08-30 12:36:35,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44767025089605733 [2023-08-30 12:36:35,531 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3747 transitions. [2023-08-30 12:36:35,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3747 transitions. [2023-08-30 12:36:35,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:35,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3747 transitions. [2023-08-30 12:36:35,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 249.8) internal successors, (3747), 15 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:35,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:35,543 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:35,544 INFO L175 Difference]: Start difference. First operand has 240 places, 301 transitions, 3488 flow. Second operand 15 states and 3747 transitions. [2023-08-30 12:36:35,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 611 transitions, 6309 flow [2023-08-30 12:36:36,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 611 transitions, 6232 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-08-30 12:36:36,137 INFO L231 Difference]: Finished difference. Result has 251 places, 349 transitions, 4466 flow [2023-08-30 12:36:36,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3415, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4466, PETRI_PLACES=251, PETRI_TRANSITIONS=349} [2023-08-30 12:36:36,138 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 175 predicate places. [2023-08-30 12:36:36,138 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 349 transitions, 4466 flow [2023-08-30 12:36:36,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 230.76923076923077) internal successors, (3000), 13 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:36,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:36,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:36,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 12:36:36,138 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:36,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1509669113, now seen corresponding path program 4 times [2023-08-30 12:36:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139750223] [2023-08-30 12:36:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:36,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:37,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:37,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139750223] [2023-08-30 12:36:37,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139750223] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:37,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:37,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 12:36:37,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469100297] [2023-08-30 12:36:37,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:37,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 12:36:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:37,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 12:36:37,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-08-30 12:36:38,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-08-30 12:36:38,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 349 transitions, 4466 flow. Second operand has 13 states, 13 states have (on average 236.76923076923077) internal successors, (3078), 13 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:38,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:38,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-08-30 12:36:38,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:48,515 INFO L130 PetriNetUnfolder]: 34045/59247 cut-off events. [2023-08-30 12:36:48,515 INFO L131 PetriNetUnfolder]: For 171754/171754 co-relation queries the response was YES. [2023-08-30 12:36:49,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214365 conditions, 59247 events. 34045/59247 cut-off events. For 171754/171754 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 469841 event pairs, 14726 based on Foata normal form. 104/54130 useless extension candidates. Maximal degree in co-relation 167123. Up to 48451 conditions per place. [2023-08-30 12:36:49,178 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 372 selfloop transitions, 53 changer transitions 3/435 dead transitions. [2023-08-30 12:36:49,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 435 transitions, 5681 flow [2023-08-30 12:36:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 12:36:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 12:36:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2964 transitions. [2023-08-30 12:36:49,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44265232974910396 [2023-08-30 12:36:49,182 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2964 transitions. [2023-08-30 12:36:49,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2964 transitions. [2023-08-30 12:36:49,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:49,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2964 transitions. [2023-08-30 12:36:49,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 247.0) internal successors, (2964), 12 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:49,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:49,190 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:49,190 INFO L175 Difference]: Start difference. First operand has 251 places, 349 transitions, 4466 flow. Second operand 12 states and 2964 transitions. [2023-08-30 12:36:49,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 435 transitions, 5681 flow [2023-08-30 12:36:50,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 435 transitions, 5599 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-30 12:36:50,062 INFO L231 Difference]: Finished difference. Result has 257 places, 342 transitions, 4425 flow [2023-08-30 12:36:50,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=4286, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4425, PETRI_PLACES=257, PETRI_TRANSITIONS=342} [2023-08-30 12:36:50,063 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 181 predicate places. [2023-08-30 12:36:50,063 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 342 transitions, 4425 flow [2023-08-30 12:36:50,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 236.76923076923077) internal successors, (3078), 13 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:50,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:50,064 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 12:36:50,064 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:50,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1649093189, now seen corresponding path program 1 times [2023-08-30 12:36:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:50,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816493028] [2023-08-30 12:36:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:50,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:50,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816493028] [2023-08-30 12:36:50,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816493028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:50,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:50,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:36:50,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523598430] [2023-08-30 12:36:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:50,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:36:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:36:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:36:50,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 12:36:50,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 342 transitions, 4425 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:50,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:50,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 12:36:50,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:52,954 INFO L130 PetriNetUnfolder]: 10486/18617 cut-off events. [2023-08-30 12:36:52,955 INFO L131 PetriNetUnfolder]: For 70065/70138 co-relation queries the response was YES. [2023-08-30 12:36:53,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67691 conditions, 18617 events. 10486/18617 cut-off events. For 70065/70138 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 122242 event pairs, 6164 based on Foata normal form. 657/18331 useless extension candidates. Maximal degree in co-relation 67489. Up to 9326 conditions per place. [2023-08-30 12:36:53,079 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 206 selfloop transitions, 2 changer transitions 1/225 dead transitions. [2023-08-30 12:36:53,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 225 transitions, 3267 flow [2023-08-30 12:36:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:36:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:36:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2023-08-30 12:36:53,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2023-08-30 12:36:53,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2023-08-30 12:36:53,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2023-08-30 12:36:53,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:53,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2023-08-30 12:36:53,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:53,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:53,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:53,082 INFO L175 Difference]: Start difference. First operand has 257 places, 342 transitions, 4425 flow. Second operand 3 states and 891 transitions. [2023-08-30 12:36:53,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 225 transitions, 3267 flow [2023-08-30 12:36:53,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 225 transitions, 3055 flow, removed 16 selfloop flow, removed 17 redundant places. [2023-08-30 12:36:53,330 INFO L231 Difference]: Finished difference. Result has 242 places, 209 transitions, 2577 flow [2023-08-30 12:36:53,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2561, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2577, PETRI_PLACES=242, PETRI_TRANSITIONS=209} [2023-08-30 12:36:53,331 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 166 predicate places. [2023-08-30 12:36:53,331 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 209 transitions, 2577 flow [2023-08-30 12:36:53,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:53,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:53,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:53,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 12:36:53,332 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:53,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash 782403557, now seen corresponding path program 1 times [2023-08-30 12:36:53,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:53,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018763878] [2023-08-30 12:36:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:53,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018763878] [2023-08-30 12:36:53,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018763878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:53,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 12:36:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691365265] [2023-08-30 12:36:53,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:53,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 12:36:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 12:36:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 12:36:53,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 558 [2023-08-30 12:36:53,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 209 transitions, 2577 flow. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:53,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:53,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 558 [2023-08-30 12:36:53,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:55,457 INFO L130 PetriNetUnfolder]: 8171/15375 cut-off events. [2023-08-30 12:36:55,458 INFO L131 PetriNetUnfolder]: For 44305/44326 co-relation queries the response was YES. [2023-08-30 12:36:55,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54065 conditions, 15375 events. 8171/15375 cut-off events. For 44305/44326 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 100428 event pairs, 1779 based on Foata normal form. 1351/15970 useless extension candidates. Maximal degree in co-relation 52877. Up to 11290 conditions per place. [2023-08-30 12:36:55,539 INFO L137 encePairwiseOnDemand]: 552/558 looper letters, 197 selfloop transitions, 9 changer transitions 0/222 dead transitions. [2023-08-30 12:36:55,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 222 transitions, 3070 flow [2023-08-30 12:36:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 12:36:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 12:36:55,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-08-30 12:36:55,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-08-30 12:36:55,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-08-30 12:36:55,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-08-30 12:36:55,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:55,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-08-30 12:36:55,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:55,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:55,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:55,542 INFO L175 Difference]: Start difference. First operand has 242 places, 209 transitions, 2577 flow. Second operand 3 states and 881 transitions. [2023-08-30 12:36:55,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 222 transitions, 3070 flow [2023-08-30 12:36:55,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 222 transitions, 3022 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 12:36:55,710 INFO L231 Difference]: Finished difference. Result has 240 places, 209 transitions, 2549 flow [2023-08-30 12:36:55,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2531, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2549, PETRI_PLACES=240, PETRI_TRANSITIONS=209} [2023-08-30 12:36:55,711 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 164 predicate places. [2023-08-30 12:36:55,711 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 209 transitions, 2549 flow [2023-08-30 12:36:55,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:55,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:55,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:55,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 12:36:55,712 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:55,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1229417445, now seen corresponding path program 1 times [2023-08-30 12:36:55,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:55,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011649717] [2023-08-30 12:36:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:55,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:56,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:56,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011649717] [2023-08-30 12:36:56,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011649717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:56,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:56,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 12:36:56,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693129540] [2023-08-30 12:36:56,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 12:36:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:56,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 12:36:56,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-30 12:36:56,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 558 [2023-08-30 12:36:56,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 209 transitions, 2549 flow. Second operand has 9 states, 9 states have (on average 250.55555555555554) internal successors, (2255), 9 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:56,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:36:56,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 558 [2023-08-30 12:36:56,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:36:58,424 INFO L130 PetriNetUnfolder]: 7862/14976 cut-off events. [2023-08-30 12:36:58,424 INFO L131 PetriNetUnfolder]: For 41110/41188 co-relation queries the response was YES. [2023-08-30 12:36:58,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53808 conditions, 14976 events. 7862/14976 cut-off events. For 41110/41188 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 99029 event pairs, 1945 based on Foata normal form. 26/14315 useless extension candidates. Maximal degree in co-relation 47673. Up to 4400 conditions per place. [2023-08-30 12:36:58,512 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 209 selfloop transitions, 63 changer transitions 1/279 dead transitions. [2023-08-30 12:36:58,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 279 transitions, 3413 flow [2023-08-30 12:36:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 12:36:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 12:36:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2358 transitions. [2023-08-30 12:36:58,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46953405017921146 [2023-08-30 12:36:58,515 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2358 transitions. [2023-08-30 12:36:58,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2358 transitions. [2023-08-30 12:36:58,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:36:58,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2358 transitions. [2023-08-30 12:36:58,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 262.0) internal successors, (2358), 9 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:58,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 558.0) internal successors, (5580), 10 states have internal predecessors, (5580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:58,521 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 558.0) internal successors, (5580), 10 states have internal predecessors, (5580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:58,521 INFO L175 Difference]: Start difference. First operand has 240 places, 209 transitions, 2549 flow. Second operand 9 states and 2358 transitions. [2023-08-30 12:36:58,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 279 transitions, 3413 flow [2023-08-30 12:36:58,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 279 transitions, 3395 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 12:36:58,724 INFO L231 Difference]: Finished difference. Result has 250 places, 213 transitions, 2740 flow [2023-08-30 12:36:58,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2740, PETRI_PLACES=250, PETRI_TRANSITIONS=213} [2023-08-30 12:36:58,725 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 174 predicate places. [2023-08-30 12:36:58,725 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 213 transitions, 2740 flow [2023-08-30 12:36:58,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 250.55555555555554) internal successors, (2255), 9 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:36:58,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:36:58,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:36:58,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 12:36:58,725 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:36:58,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:36:58,726 INFO L85 PathProgramCache]: Analyzing trace with hash -420185818, now seen corresponding path program 1 times [2023-08-30 12:36:58,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:36:58,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503906015] [2023-08-30 12:36:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:36:58,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:36:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:36:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:36:59,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:36:59,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503906015] [2023-08-30 12:36:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503906015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:36:59,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:36:59,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-08-30 12:36:59,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904803411] [2023-08-30 12:36:59,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:36:59,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-30 12:36:59,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:36:59,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-30 12:36:59,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-08-30 12:37:00,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-08-30 12:37:00,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 213 transitions, 2740 flow. Second operand has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:00,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:00,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-08-30 12:37:00,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:03,981 INFO L130 PetriNetUnfolder]: 8368/16004 cut-off events. [2023-08-30 12:37:03,981 INFO L131 PetriNetUnfolder]: For 47766/47820 co-relation queries the response was YES. [2023-08-30 12:37:04,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57905 conditions, 16004 events. 8368/16004 cut-off events. For 47766/47820 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 108441 event pairs, 2491 based on Foata normal form. 18/15457 useless extension candidates. Maximal degree in co-relation 51680. Up to 4475 conditions per place. [2023-08-30 12:37:04,106 INFO L137 encePairwiseOnDemand]: 536/558 looper letters, 369 selfloop transitions, 118 changer transitions 6/499 dead transitions. [2023-08-30 12:37:04,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 499 transitions, 5116 flow [2023-08-30 12:37:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-30 12:37:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-30 12:37:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7877 transitions. [2023-08-30 12:37:04,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411402329749104 [2023-08-30 12:37:04,112 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7877 transitions. [2023-08-30 12:37:04,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7877 transitions. [2023-08-30 12:37:04,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:04,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7877 transitions. [2023-08-30 12:37:04,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 246.15625) internal successors, (7877), 32 states have internal predecessors, (7877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:04,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:04,358 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:04,358 INFO L175 Difference]: Start difference. First operand has 250 places, 213 transitions, 2740 flow. Second operand 32 states and 7877 transitions. [2023-08-30 12:37:04,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 499 transitions, 5116 flow [2023-08-30 12:37:04,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 499 transitions, 5057 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-30 12:37:04,605 INFO L231 Difference]: Finished difference. Result has 281 places, 228 transitions, 3109 flow [2023-08-30 12:37:04,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2685, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=3109, PETRI_PLACES=281, PETRI_TRANSITIONS=228} [2023-08-30 12:37:04,606 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 205 predicate places. [2023-08-30 12:37:04,606 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 228 transitions, 3109 flow [2023-08-30 12:37:04,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:04,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:04,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:04,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 12:37:04,607 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:04,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:04,607 INFO L85 PathProgramCache]: Analyzing trace with hash 578401396, now seen corresponding path program 2 times [2023-08-30 12:37:04,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:04,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268136178] [2023-08-30 12:37:04,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:05,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268136178] [2023-08-30 12:37:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268136178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:05,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:05,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 12:37:05,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163627751] [2023-08-30 12:37:05,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:05,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 12:37:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 12:37:05,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-08-30 12:37:08,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 12:37:08,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 228 transitions, 3109 flow. Second operand has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:08,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:08,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 12:37:08,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:11,248 INFO L130 PetriNetUnfolder]: 8364/16052 cut-off events. [2023-08-30 12:37:11,248 INFO L131 PetriNetUnfolder]: For 53802/53870 co-relation queries the response was YES. [2023-08-30 12:37:11,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59929 conditions, 16052 events. 8364/16052 cut-off events. For 53802/53870 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 109124 event pairs, 3869 based on Foata normal form. 42/15588 useless extension candidates. Maximal degree in co-relation 58626. Up to 9300 conditions per place. [2023-08-30 12:37:11,348 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 266 selfloop transitions, 79 changer transitions 7/358 dead transitions. [2023-08-30 12:37:11,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 358 transitions, 4457 flow [2023-08-30 12:37:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 12:37:11,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 12:37:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4217 transitions. [2023-08-30 12:37:11,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.419852648347272 [2023-08-30 12:37:11,352 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4217 transitions. [2023-08-30 12:37:11,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4217 transitions. [2023-08-30 12:37:11,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:11,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4217 transitions. [2023-08-30 12:37:11,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 234.27777777777777) internal successors, (4217), 18 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:11,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:11,360 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:11,360 INFO L175 Difference]: Start difference. First operand has 281 places, 228 transitions, 3109 flow. Second operand 18 states and 4217 transitions. [2023-08-30 12:37:11,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 358 transitions, 4457 flow [2023-08-30 12:37:11,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 358 transitions, 4215 flow, removed 9 selfloop flow, removed 21 redundant places. [2023-08-30 12:37:11,560 INFO L231 Difference]: Finished difference. Result has 280 places, 234 transitions, 3117 flow [2023-08-30 12:37:11,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2871, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3117, PETRI_PLACES=280, PETRI_TRANSITIONS=234} [2023-08-30 12:37:11,560 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 204 predicate places. [2023-08-30 12:37:11,560 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 234 transitions, 3117 flow [2023-08-30 12:37:11,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:11,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:11,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:11,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 12:37:11,561 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:11,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:11,562 INFO L85 PathProgramCache]: Analyzing trace with hash -46020788, now seen corresponding path program 3 times [2023-08-30 12:37:11,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:11,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260653455] [2023-08-30 12:37:11,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:11,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:13,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:13,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260653455] [2023-08-30 12:37:13,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260653455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:13,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:13,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-08-30 12:37:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610417848] [2023-08-30 12:37:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:13,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-30 12:37:13,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-30 12:37:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-08-30 12:37:16,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 12:37:16,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 234 transitions, 3117 flow. Second operand has 20 states, 20 states have (on average 225.6) internal successors, (4512), 20 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:16,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:16,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 12:37:16,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:19,755 INFO L130 PetriNetUnfolder]: 8472/16312 cut-off events. [2023-08-30 12:37:19,755 INFO L131 PetriNetUnfolder]: For 51520/51552 co-relation queries the response was YES. [2023-08-30 12:37:19,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60470 conditions, 16312 events. 8472/16312 cut-off events. For 51520/51552 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 111056 event pairs, 2763 based on Foata normal form. 50/15853 useless extension candidates. Maximal degree in co-relation 59315. Up to 7575 conditions per place. [2023-08-30 12:37:19,853 INFO L137 encePairwiseOnDemand]: 539/558 looper letters, 257 selfloop transitions, 87 changer transitions 13/363 dead transitions. [2023-08-30 12:37:19,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 363 transitions, 4452 flow [2023-08-30 12:37:19,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 12:37:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 12:37:19,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4215 transitions. [2023-08-30 12:37:19,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41965352449223414 [2023-08-30 12:37:19,856 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4215 transitions. [2023-08-30 12:37:19,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4215 transitions. [2023-08-30 12:37:19,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:19,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4215 transitions. [2023-08-30 12:37:19,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 234.16666666666666) internal successors, (4215), 18 states have internal predecessors, (4215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:19,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:19,863 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:19,863 INFO L175 Difference]: Start difference. First operand has 280 places, 234 transitions, 3117 flow. Second operand 18 states and 4215 transitions. [2023-08-30 12:37:19,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 363 transitions, 4452 flow [2023-08-30 12:37:20,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 363 transitions, 4296 flow, removed 3 selfloop flow, removed 15 redundant places. [2023-08-30 12:37:20,086 INFO L231 Difference]: Finished difference. Result has 285 places, 239 transitions, 3223 flow [2023-08-30 12:37:20,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2961, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3223, PETRI_PLACES=285, PETRI_TRANSITIONS=239} [2023-08-30 12:37:20,087 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 209 predicate places. [2023-08-30 12:37:20,087 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 239 transitions, 3223 flow [2023-08-30 12:37:20,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 225.6) internal successors, (4512), 20 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:20,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:20,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:20,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 12:37:20,088 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:20,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:20,089 INFO L85 PathProgramCache]: Analyzing trace with hash -618680647, now seen corresponding path program 2 times [2023-08-30 12:37:20,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:20,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102291049] [2023-08-30 12:37:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:20,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:21,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102291049] [2023-08-30 12:37:21,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102291049] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:21,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:21,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 12:37:21,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835944923] [2023-08-30 12:37:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:21,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 12:37:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 12:37:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-08-30 12:37:23,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 558 [2023-08-30 12:37:23,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 239 transitions, 3223 flow. Second operand has 19 states, 19 states have (on average 229.68421052631578) internal successors, (4364), 19 states have internal predecessors, (4364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:23,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:23,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 558 [2023-08-30 12:37:23,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:26,805 INFO L130 PetriNetUnfolder]: 8454/16240 cut-off events. [2023-08-30 12:37:26,805 INFO L131 PetriNetUnfolder]: For 56842/56878 co-relation queries the response was YES. [2023-08-30 12:37:26,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61246 conditions, 16240 events. 8454/16240 cut-off events. For 56842/56878 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 110351 event pairs, 1671 based on Foata normal form. 50/15777 useless extension candidates. Maximal degree in co-relation 57936. Up to 7082 conditions per place. [2023-08-30 12:37:26,918 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 252 selfloop transitions, 88 changer transitions 13/359 dead transitions. [2023-08-30 12:37:26,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 359 transitions, 4496 flow [2023-08-30 12:37:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 12:37:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 12:37:26,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4284 transitions. [2023-08-30 12:37:26,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265232974910394 [2023-08-30 12:37:26,921 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4284 transitions. [2023-08-30 12:37:26,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4284 transitions. [2023-08-30 12:37:26,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:26,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4284 transitions. [2023-08-30 12:37:26,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 238.0) internal successors, (4284), 18 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:26,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:26,928 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:26,928 INFO L175 Difference]: Start difference. First operand has 285 places, 239 transitions, 3223 flow. Second operand 18 states and 4284 transitions. [2023-08-30 12:37:26,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 359 transitions, 4496 flow [2023-08-30 12:37:27,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 359 transitions, 4367 flow, removed 1 selfloop flow, removed 13 redundant places. [2023-08-30 12:37:27,158 INFO L231 Difference]: Finished difference. Result has 288 places, 238 transitions, 3266 flow [2023-08-30 12:37:27,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3090, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3266, PETRI_PLACES=288, PETRI_TRANSITIONS=238} [2023-08-30 12:37:27,158 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 212 predicate places. [2023-08-30 12:37:27,159 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 238 transitions, 3266 flow [2023-08-30 12:37:27,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 229.68421052631578) internal successors, (4364), 19 states have internal predecessors, (4364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:27,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:27,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:27,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 12:37:27,159 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:27,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1673998194, now seen corresponding path program 4 times [2023-08-30 12:37:27,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:27,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446902458] [2023-08-30 12:37:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:27,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:28,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:28,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446902458] [2023-08-30 12:37:28,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446902458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:28,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:28,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 12:37:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211709988] [2023-08-30 12:37:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:28,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 12:37:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:28,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 12:37:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-08-30 12:37:30,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 12:37:30,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 238 transitions, 3266 flow. Second operand has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:30,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:30,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 12:37:30,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:33,252 INFO L130 PetriNetUnfolder]: 8429/16233 cut-off events. [2023-08-30 12:37:33,252 INFO L131 PetriNetUnfolder]: For 55586/55616 co-relation queries the response was YES. [2023-08-30 12:37:33,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61710 conditions, 16233 events. 8429/16233 cut-off events. For 55586/55616 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 110484 event pairs, 1841 based on Foata normal form. 30/15757 useless extension candidates. Maximal degree in co-relation 58588. Up to 7082 conditions per place. [2023-08-30 12:37:33,604 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 249 selfloop transitions, 85 changer transitions 12/352 dead transitions. [2023-08-30 12:37:33,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 352 transitions, 4490 flow [2023-08-30 12:37:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 12:37:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 12:37:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3981 transitions. [2023-08-30 12:37:33,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4196710942441493 [2023-08-30 12:37:33,607 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3981 transitions. [2023-08-30 12:37:33,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3981 transitions. [2023-08-30 12:37:33,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:33,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3981 transitions. [2023-08-30 12:37:33,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 234.1764705882353) internal successors, (3981), 17 states have internal predecessors, (3981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:33,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 558.0) internal successors, (10044), 18 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:33,614 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 558.0) internal successors, (10044), 18 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:33,614 INFO L175 Difference]: Start difference. First operand has 288 places, 238 transitions, 3266 flow. Second operand 17 states and 3981 transitions. [2023-08-30 12:37:33,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 352 transitions, 4490 flow [2023-08-30 12:37:33,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 352 transitions, 4337 flow, removed 0 selfloop flow, removed 15 redundant places. [2023-08-30 12:37:33,856 INFO L231 Difference]: Finished difference. Result has 290 places, 238 transitions, 3297 flow [2023-08-30 12:37:33,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3297, PETRI_PLACES=290, PETRI_TRANSITIONS=238} [2023-08-30 12:37:33,856 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 214 predicate places. [2023-08-30 12:37:33,856 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 238 transitions, 3297 flow [2023-08-30 12:37:33,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:33,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:33,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:33,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 12:37:33,857 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:33,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:33,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2072442387, now seen corresponding path program 1 times [2023-08-30 12:37:33,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:33,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387125134] [2023-08-30 12:37:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:33,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:34,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387125134] [2023-08-30 12:37:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387125134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:34,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:34,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-08-30 12:37:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431211003] [2023-08-30 12:37:34,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:34,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 12:37:34,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:34,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 12:37:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-08-30 12:37:35,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:37:35,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 238 transitions, 3297 flow. Second operand has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:35,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:35,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:37:35,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:38,091 INFO L130 PetriNetUnfolder]: 7320/14098 cut-off events. [2023-08-30 12:37:38,091 INFO L131 PetriNetUnfolder]: For 56588/56656 co-relation queries the response was YES. [2023-08-30 12:37:38,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55932 conditions, 14098 events. 7320/14098 cut-off events. For 56588/56656 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 93492 event pairs, 3483 based on Foata normal form. 22/13767 useless extension candidates. Maximal degree in co-relation 53727. Up to 7736 conditions per place. [2023-08-30 12:37:38,202 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 240 selfloop transitions, 63 changer transitions 17/326 dead transitions. [2023-08-30 12:37:38,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 326 transitions, 4233 flow [2023-08-30 12:37:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 12:37:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 12:37:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3441 transitions. [2023-08-30 12:37:38,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2023-08-30 12:37:38,205 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3441 transitions. [2023-08-30 12:37:38,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3441 transitions. [2023-08-30 12:37:38,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:38,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3441 transitions. [2023-08-30 12:37:38,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 245.78571428571428) internal successors, (3441), 14 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:38,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:38,212 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:38,212 INFO L175 Difference]: Start difference. First operand has 290 places, 238 transitions, 3297 flow. Second operand 14 states and 3441 transitions. [2023-08-30 12:37:38,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 326 transitions, 4233 flow [2023-08-30 12:37:38,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 326 transitions, 3965 flow, removed 6 selfloop flow, removed 26 redundant places. [2023-08-30 12:37:38,444 INFO L231 Difference]: Finished difference. Result has 279 places, 226 transitions, 3012 flow [2023-08-30 12:37:38,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2864, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3012, PETRI_PLACES=279, PETRI_TRANSITIONS=226} [2023-08-30 12:37:38,444 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 203 predicate places. [2023-08-30 12:37:38,445 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 226 transitions, 3012 flow [2023-08-30 12:37:38,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:38,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:38,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 12:37:38,446 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:38,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -929083495, now seen corresponding path program 2 times [2023-08-30 12:37:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:38,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592714317] [2023-08-30 12:37:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:38,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:39,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592714317] [2023-08-30 12:37:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592714317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:39,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:39,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-08-30 12:37:39,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574246692] [2023-08-30 12:37:39,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:39,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-30 12:37:39,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:39,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-30 12:37:39,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-08-30 12:37:40,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:37:40,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 226 transitions, 3012 flow. Second operand has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:40,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:40,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:37:40,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:42,918 INFO L130 PetriNetUnfolder]: 6601/12787 cut-off events. [2023-08-30 12:37:42,918 INFO L131 PetriNetUnfolder]: For 48473/48505 co-relation queries the response was YES. [2023-08-30 12:37:42,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50875 conditions, 12787 events. 6601/12787 cut-off events. For 48473/48505 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 83249 event pairs, 2116 based on Foata normal form. 90/12772 useless extension candidates. Maximal degree in co-relation 48706. Up to 3914 conditions per place. [2023-08-30 12:37:43,003 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 226 selfloop transitions, 67 changer transitions 15/314 dead transitions. [2023-08-30 12:37:43,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 314 transitions, 3974 flow [2023-08-30 12:37:43,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 12:37:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 12:37:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3197 transitions. [2023-08-30 12:37:43,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4407223600771988 [2023-08-30 12:37:43,006 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3197 transitions. [2023-08-30 12:37:43,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3197 transitions. [2023-08-30 12:37:43,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:43,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3197 transitions. [2023-08-30 12:37:43,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 245.92307692307693) internal successors, (3197), 13 states have internal predecessors, (3197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:43,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:43,014 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:43,014 INFO L175 Difference]: Start difference. First operand has 279 places, 226 transitions, 3012 flow. Second operand 13 states and 3197 transitions. [2023-08-30 12:37:43,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 314 transitions, 3974 flow [2023-08-30 12:37:43,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 314 transitions, 3816 flow, removed 3 selfloop flow, removed 12 redundant places. [2023-08-30 12:37:43,224 INFO L231 Difference]: Finished difference. Result has 281 places, 222 transitions, 2945 flow [2023-08-30 12:37:43,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2759, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2945, PETRI_PLACES=281, PETRI_TRANSITIONS=222} [2023-08-30 12:37:43,225 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 205 predicate places. [2023-08-30 12:37:43,225 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 222 transitions, 2945 flow [2023-08-30 12:37:43,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:43,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:43,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:43,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 12:37:43,226 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:43,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1448900109, now seen corresponding path program 3 times [2023-08-30 12:37:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:43,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050263155] [2023-08-30 12:37:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:44,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:44,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050263155] [2023-08-30 12:37:44,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050263155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 12:37:44,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 12:37:44,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-08-30 12:37:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184466104] [2023-08-30 12:37:44,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 12:37:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 12:37:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 12:37:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-08-30 12:37:45,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 12:37:45,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 222 transitions, 2945 flow. Second operand has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:45,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:45,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 12:37:45,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:37:47,174 INFO L130 PetriNetUnfolder]: 5692/11078 cut-off events. [2023-08-30 12:37:47,175 INFO L131 PetriNetUnfolder]: For 49427/49457 co-relation queries the response was YES. [2023-08-30 12:37:47,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46215 conditions, 11078 events. 5692/11078 cut-off events. For 49427/49457 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 73080 event pairs, 1181 based on Foata normal form. 50/11082 useless extension candidates. Maximal degree in co-relation 45059. Up to 2972 conditions per place. [2023-08-30 12:37:47,268 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 206 selfloop transitions, 77 changer transitions 19/308 dead transitions. [2023-08-30 12:37:47,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 308 transitions, 3779 flow [2023-08-30 12:37:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 12:37:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 12:37:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3913 transitions. [2023-08-30 12:37:47,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43828405017921146 [2023-08-30 12:37:47,270 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3913 transitions. [2023-08-30 12:37:47,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3913 transitions. [2023-08-30 12:37:47,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:37:47,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3913 transitions. [2023-08-30 12:37:47,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 244.5625) internal successors, (3913), 16 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:47,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:47,278 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:47,278 INFO L175 Difference]: Start difference. First operand has 281 places, 222 transitions, 2945 flow. Second operand 16 states and 3913 transitions. [2023-08-30 12:37:47,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 308 transitions, 3779 flow [2023-08-30 12:37:47,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 308 transitions, 3419 flow, removed 7 selfloop flow, removed 28 redundant places. [2023-08-30 12:37:47,669 INFO L231 Difference]: Finished difference. Result has 271 places, 203 transitions, 2547 flow [2023-08-30 12:37:47,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2342, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2547, PETRI_PLACES=271, PETRI_TRANSITIONS=203} [2023-08-30 12:37:47,669 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 195 predicate places. [2023-08-30 12:37:47,670 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 203 transitions, 2547 flow [2023-08-30 12:37:47,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:47,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:37:47,671 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:37:47,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 12:37:47,671 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:37:47,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:37:47,671 INFO L85 PathProgramCache]: Analyzing trace with hash 400375076, now seen corresponding path program 1 times [2023-08-30 12:37:47,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:37:47,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350120860] [2023-08-30 12:37:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:37:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:49,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:37:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350120860] [2023-08-30 12:37:49,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350120860] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 12:37:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289031096] [2023-08-30 12:37:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:37:49,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 12:37:49,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:37:49,554 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 12:37:49,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 12:37:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:37:49,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 80 conjunts are in the unsatisfiable core [2023-08-30 12:37:49,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 12:37:49,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-08-30 12:37:50,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:37:50,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2023-08-30 12:37:50,122 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-30 12:37:50,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 24 [2023-08-30 12:37:50,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-08-30 12:37:50,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2023-08-30 12:37:50,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:37:50,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2023-08-30 12:37:50,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-08-30 12:37:50,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2023-08-30 12:37:50,790 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2023-08-30 12:37:50,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 38 [2023-08-30 12:37:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:37:50,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 12:37:51,378 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4)) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 12:37:51,396 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4)) v_ArrVal_1853) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 12:37:51,409 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 12:37:51,438 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647) (< (+ |c_t1Thread1of1ForFork0_enqueue_#t~post38#1| 1) v_ArrVal_1844) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 12:37:51,457 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< 2147483647 v_ArrVal_1844) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 12:37:51,480 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1842 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1842)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< 2147483647 v_ArrVal_1844) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 12:37:52,612 INFO L321 Elim1Store]: treesize reduction 323, result has 42.5 percent of original size [2023-08-30 12:37:52,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 772 treesize of output 449 [2023-08-30 12:37:52,707 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-08-30 12:37:52,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 434 treesize of output 418 [2023-08-30 12:37:52,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:37:52,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 267 treesize of output 253 [2023-08-30 12:37:52,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 191 [2023-08-30 12:37:52,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-08-30 12:37:52,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-08-30 12:37:52,949 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-30 12:37:52,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2023-08-30 12:37:53,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-30 12:37:53,243 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:37:53,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 349 treesize of output 355 [2023-08-30 12:37:53,572 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:37:53,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 437 [2023-08-30 12:37:54,239 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:37:54,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 242 treesize of output 188 [2023-08-30 12:37:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-08-30 12:37:54,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289031096] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 12:37:54,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 12:37:54,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 59 [2023-08-30 12:37:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220301504] [2023-08-30 12:37:54,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 12:37:54,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-08-30 12:37:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:37:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-08-30 12:37:54,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2600, Unknown=6, NotChecked=666, Total=3660 [2023-08-30 12:37:55,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 558 [2023-08-30 12:37:55,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 203 transitions, 2547 flow. Second operand has 61 states, 61 states have (on average 181.1639344262295) internal successors, (11051), 61 states have internal predecessors, (11051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:37:55,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:37:55,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 558 [2023-08-30 12:37:55,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:38:17,357 INFO L130 PetriNetUnfolder]: 8610/16667 cut-off events. [2023-08-30 12:38:17,357 INFO L131 PetriNetUnfolder]: For 57210/57296 co-relation queries the response was YES. [2023-08-30 12:38:17,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64326 conditions, 16667 events. 8610/16667 cut-off events. For 57210/57296 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 112792 event pairs, 2544 based on Foata normal form. 36/16635 useless extension candidates. Maximal degree in co-relation 60692. Up to 3842 conditions per place. [2023-08-30 12:38:17,484 INFO L137 encePairwiseOnDemand]: 530/558 looper letters, 487 selfloop transitions, 164 changer transitions 38/695 dead transitions. [2023-08-30 12:38:17,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 695 transitions, 6603 flow [2023-08-30 12:38:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-08-30 12:38:17,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-08-30 12:38:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 10697 transitions. [2023-08-30 12:38:17,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3363201911589008 [2023-08-30 12:38:17,491 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 10697 transitions. [2023-08-30 12:38:17,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 10697 transitions. [2023-08-30 12:38:17,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:38:17,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 10697 transitions. [2023-08-30 12:38:17,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 187.66666666666666) internal successors, (10697), 57 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:17,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 558.0) internal successors, (32364), 58 states have internal predecessors, (32364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:17,526 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 558.0) internal successors, (32364), 58 states have internal predecessors, (32364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:17,526 INFO L175 Difference]: Start difference. First operand has 271 places, 203 transitions, 2547 flow. Second operand 57 states and 10697 transitions. [2023-08-30 12:38:17,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 695 transitions, 6603 flow [2023-08-30 12:38:17,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 695 transitions, 6424 flow, removed 4 selfloop flow, removed 12 redundant places. [2023-08-30 12:38:17,778 INFO L231 Difference]: Finished difference. Result has 325 places, 267 transitions, 3383 flow [2023-08-30 12:38:17,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2398, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=3383, PETRI_PLACES=325, PETRI_TRANSITIONS=267} [2023-08-30 12:38:17,779 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 249 predicate places. [2023-08-30 12:38:17,779 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 267 transitions, 3383 flow [2023-08-30 12:38:17,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 181.1639344262295) internal successors, (11051), 61 states have internal predecessors, (11051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:17,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:38:17,780 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:38:17,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 12:38:17,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-08-30 12:38:17,981 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:38:17,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:38:17,981 INFO L85 PathProgramCache]: Analyzing trace with hash 400375051, now seen corresponding path program 1 times [2023-08-30 12:38:17,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:38:17,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052235052] [2023-08-30 12:38:17,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:38:17,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:38:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:38:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:38:18,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:38:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052235052] [2023-08-30 12:38:18,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052235052] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 12:38:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511197503] [2023-08-30 12:38:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:38:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 12:38:18,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:38:18,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 12:38:18,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 12:38:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:38:18,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 52 conjunts are in the unsatisfiable core [2023-08-30 12:38:18,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 12:38:18,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 12:38:19,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-30 12:38:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:38:19,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 12:38:19,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-08-30 12:38:19,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-30 12:38:19,383 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 12:38:19,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2023-08-30 12:38:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:38:19,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 12:38:20,135 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:38:20,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 66 [2023-08-30 12:38:20,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:38:20,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 106 [2023-08-30 12:38:20,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2023-08-30 12:38:20,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-08-30 12:38:20,182 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 12:38:20,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 53 [2023-08-30 12:38:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:38:20,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511197503] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 12:38:20,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 12:38:20,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 33 [2023-08-30 12:38:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737646601] [2023-08-30 12:38:20,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 12:38:20,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 12:38:20,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:38:20,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 12:38:20,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1007, Unknown=5, NotChecked=0, Total=1190 [2023-08-30 12:38:22,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:25,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:28,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:30,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:32,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:35,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:37,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:39,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:41,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 12:38:42,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 558 [2023-08-30 12:38:42,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 267 transitions, 3383 flow. Second operand has 35 states, 35 states have (on average 195.77142857142857) internal successors, (6852), 35 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:42,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:38:42,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 558 [2023-08-30 12:38:42,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:38:45,760 INFO L130 PetriNetUnfolder]: 8842/17091 cut-off events. [2023-08-30 12:38:45,760 INFO L131 PetriNetUnfolder]: For 55861/55951 co-relation queries the response was YES. [2023-08-30 12:38:46,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67531 conditions, 17091 events. 8842/17091 cut-off events. For 55861/55951 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 115620 event pairs, 2561 based on Foata normal form. 60/17107 useless extension candidates. Maximal degree in co-relation 65328. Up to 4128 conditions per place. [2023-08-30 12:38:46,160 INFO L137 encePairwiseOnDemand]: 537/558 looper letters, 272 selfloop transitions, 109 changer transitions 18/405 dead transitions. [2023-08-30 12:38:46,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 405 transitions, 4834 flow [2023-08-30 12:38:46,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 12:38:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 12:38:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4057 transitions. [2023-08-30 12:38:46,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3635304659498208 [2023-08-30 12:38:46,163 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4057 transitions. [2023-08-30 12:38:46,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4057 transitions. [2023-08-30 12:38:46,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 12:38:46,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4057 transitions. [2023-08-30 12:38:46,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 202.85) internal successors, (4057), 20 states have internal predecessors, (4057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:46,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 558.0) internal successors, (11718), 21 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:46,171 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 558.0) internal successors, (11718), 21 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:46,171 INFO L175 Difference]: Start difference. First operand has 325 places, 267 transitions, 3383 flow. Second operand 20 states and 4057 transitions. [2023-08-30 12:38:46,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 405 transitions, 4834 flow [2023-08-30 12:38:46,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 405 transitions, 4619 flow, removed 33 selfloop flow, removed 17 redundant places. [2023-08-30 12:38:46,479 INFO L231 Difference]: Finished difference. Result has 325 places, 271 transitions, 3415 flow [2023-08-30 12:38:46,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3121, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3415, PETRI_PLACES=325, PETRI_TRANSITIONS=271} [2023-08-30 12:38:46,479 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 249 predicate places. [2023-08-30 12:38:46,479 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 271 transitions, 3415 flow [2023-08-30 12:38:46,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 195.77142857142857) internal successors, (6852), 35 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:38:46,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 12:38:46,481 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 12:38:46,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 12:38:46,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 12:38:46,687 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 12:38:46,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 12:38:46,688 INFO L85 PathProgramCache]: Analyzing trace with hash -233317708, now seen corresponding path program 2 times [2023-08-30 12:38:46,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 12:38:46,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548258390] [2023-08-30 12:38:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 12:38:46,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 12:38:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 12:38:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:38:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 12:38:48,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548258390] [2023-08-30 12:38:48,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548258390] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 12:38:48,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373231116] [2023-08-30 12:38:48,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 12:38:48,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 12:38:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:38:48,429 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 12:38:48,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 12:38:48,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 12:38:48,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 12:38:48,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 113 conjunts are in the unsatisfiable core [2023-08-30 12:38:48,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 12:38:48,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:38:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:38:48,731 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 12:38:48,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2023-08-30 12:38:48,748 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-30 12:38:48,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-08-30 12:38:48,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-08-30 12:38:48,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2023-08-30 12:38:49,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2023-08-30 12:38:49,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-30 12:38:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:38:49,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-30 12:38:49,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2023-08-30 12:38:49,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2023-08-30 12:38:50,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-08-30 12:38:50,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 12:38:50,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2023-08-30 12:38:50,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2023-08-30 12:38:53,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2023-08-30 12:39:12,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2023-08-30 12:39:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 12:39:23,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 12:39:32,331 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647)))) is different from false [2023-08-30 12:39:32,354 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604) v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|) v_ArrVal_2144) (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647)))) is different from false [2023-08-30 12:39:32,377 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse1 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store .cse1 .cse2 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse3 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (+ (select .cse1 .cse2) 1) v_ArrVal_2144) (< (select .cse0 .cse3) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse0 .cse3 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse3) 2147483647))))) is different from false [2023-08-30 12:39:32,429 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse3 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (+ (select .cse2 .cse3) 1) v_ArrVal_2144) (< (+ |c_t1Thread1of1ForFork0_enqueue_#t~post38#1| 1) v_ArrVal_2142))))) is different from false [2023-08-30 12:39:32,463 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse3 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< 2147483647 v_ArrVal_2142) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (+ (select .cse2 .cse3) 1) v_ArrVal_2144))))) is different from false [2023-08-30 12:39:32,501 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2140 Int) (v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse0 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2140)) (.cse1 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse3 (+ 1608 |c_~#queue~0.offset|)) (.cse2 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse1 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|))) (or (< (+ (select .cse0 .cse1) 1) v_ArrVal_2144) (< (select (store (store (store .cse2 .cse3 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse3) 2147483647) (< 2147483647 v_ArrVal_2142) (< (select .cse2 .cse3) (+ v_ArrVal_2148 1)) (< (select .cse2 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|))))) is different from false [2023-08-30 12:39:33,057 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2140 Int) (v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2139 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76| Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse5 (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_2139))) (let ((.cse0 (select .cse5 |c_~#queue~0.base|))) (let ((.cse2 (store .cse0 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) |c_~#queue~0.offset|) v_ArrVal_2140)) (.cse4 (+ 1608 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 1604))) (let ((.cse3 (select (store (store .cse5 |c_~#queue~0.base| (store (store .cse2 .cse4 v_ArrVal_2142) .cse1 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) (< (+ (select .cse2 .cse1) 1) v_ArrVal_2144) (< 2147483647 v_ArrVal_2142) (< (select .cse3 .cse4) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse3 .cse4 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse4) 2147483647) (< (select .cse3 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|))))))) is different from false [2023-08-30 12:39:33,138 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2140 Int) (v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2139 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76| Int) (v_ArrVal_2144 Int) (v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2138) |c_~#stored_elements~0.base| v_ArrVal_2139))) (let ((.cse0 (select .cse5 |c_~#queue~0.base|))) (let ((.cse2 (store .cse0 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) |c_~#queue~0.offset|) v_ArrVal_2140)) (.cse4 (+ 1608 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 1604))) (let ((.cse3 (select (store (store .cse5 |c_~#queue~0.base| (store (store .cse2 .cse4 v_ArrVal_2142) .cse1 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) (< (+ (select .cse2 .cse1) 1) v_ArrVal_2144) (< 2147483647 v_ArrVal_2142) (< (select (store (store (store .cse3 .cse4 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse4) 2147483647) (< (select .cse3 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select .cse3 .cse4) (+ v_ArrVal_2148 1)))))))) is different from false [2023-08-30 12:39:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-08-30 12:39:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373231116] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 12:39:41,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 12:39:41,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 21] total 65 [2023-08-30 12:39:41,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307475823] [2023-08-30 12:39:41,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 12:39:41,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-08-30 12:39:41,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 12:39:41,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-08-30 12:39:41,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=2989, Unknown=78, NotChecked=968, Total=4422 [2023-08-30 12:39:42,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 558 [2023-08-30 12:39:42,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 271 transitions, 3415 flow. Second operand has 67 states, 67 states have (on average 180.97014925373134) internal successors, (12125), 67 states have internal predecessors, (12125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 12:39:42,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 12:39:42,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 558 [2023-08-30 12:39:42,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 12:40:01,029 WARN L222 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 99 DAG size of output: 40 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:40:09,164 WARN L222 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 92 DAG size of output: 38 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:40:26,499 WARN L222 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 176 DAG size of output: 89 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:40:27,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:40:29,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:40:31,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:40:33,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:40:58,609 WARN L222 SmtUtils]: Spent 13.11s on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:41:01,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:41:14,755 WARN L222 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 155 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:41:43,301 WARN L222 SmtUtils]: Spent 17.21s on a formula simplification. DAG size of input: 151 DAG size of output: 89 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:41:57,728 WARN L222 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 157 DAG size of output: 49 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:41:59,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:01,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:03,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:26,316 WARN L222 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 223 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:42:28,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:30,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:33,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:35,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:37,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:43,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:42:51,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:09,635 WARN L222 SmtUtils]: Spent 17.53s on a formula simplification. DAG size of input: 172 DAG size of output: 92 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:43:11,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:36,789 WARN L222 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 185 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:43:38,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:40,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:42,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:44,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:54,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:43:58,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 12:44:19,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:21,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:23,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:25,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:27,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:29,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:31,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:33,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:35,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:37,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:39,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:41,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:43,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:45,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:47,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:49,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:51,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:53,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:44:56,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:07,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:23,501 WARN L222 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 193 DAG size of output: 109 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:45:25,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:27,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:29,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:31,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:33,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:35,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:37,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:39,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:41,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:43,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:45,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:47,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:49,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:51,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:53,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:55,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:57,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:45:59,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:46:04,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:46:06,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:46:09,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:47:01,319 WARN L222 SmtUtils]: Spent 26.57s on a formula simplification. DAG size of input: 209 DAG size of output: 140 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 12:47:03,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:47:05,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 12:47:08,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] Killed by 15